CN112121531A - Classified recovery type sewage sludge filter-pressing system and treatment method thereof - Google Patents
Classified recovery type sewage sludge filter-pressing system and treatment method thereof Download PDFInfo
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- CN112121531A CN112121531A CN202011005002.1A CN202011005002A CN112121531A CN 112121531 A CN112121531 A CN 112121531A CN 202011005002 A CN202011005002 A CN 202011005002A CN 112121531 A CN112121531 A CN 112121531A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D36/00—Filter circuits or combinations of filters with other separating devices
- B01D36/02—Combinations of filters of different kinds
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
- B01D29/31—Self-supporting filtering elements
- B01D29/35—Self-supporting filtering elements arranged for outward flow filtration
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Abstract
The invention discloses a classified recovery type sewage sludge filter-pressing system, which comprises a primary filter device; the primary filtering device comprises a protective shell, a water filtering piece and an extrusion piece; the water filtering piece comprises a plate; a plurality of plates are spliced and enclosed to form a cylindrical structure; the surface of the plate is provided with a filter hole; the filter holes with different inner diameters are distributed in sequence along the circumferential direction of the water filtering piece; a limiting cavity is formed in the protective shell; the water filtering piece is in nested fit with the limiting cavity; the extrusion piece comprises a telescopic rod and a pressing block; the pressing block is correspondingly matched with the inner space of the water filtering piece; the telescopic rod drives the pressing block to reciprocate in the water filtering piece; the pressing block is utilized to extrude the sewage in the water filtering piece, so that the water flow can be promoted to penetrate through the filtering holes in an accelerated manner, and the separation of solid impurities from the rest sewage is realized; and the subsequent rotary filtering structure is matched, so that the classification separation of impurities and sludge in the sewage is realized.
Description
Technical Field
The invention relates to the field of sewage treatment, in particular to a classified recovery type sewage sludge filter pressing system and a treatment method thereof.
Background
The sewage treatment usually accompanies the sludge treatment and is carried out simultaneously, most of the existing methods for separating the sludge are directly settled, and the treatment efficiency is only suitable for centralized sewage treatment plants and is not suitable for the treatment requirement of fast pace of various production enterprises. Therefore, the classified recovery type sewage sludge filter-pressing system with high treatment efficiency and good fault-tolerant effect is needed to be invented.
Disclosure of Invention
The purpose of the invention is as follows: in order to overcome the defects in the prior art, the invention provides the classified recovery type sewage sludge filter pressing system which is high in treatment efficiency and good in fault-tolerant effect.
The technical scheme is as follows: in order to achieve the aim, the classified recovery type sewage sludge filter-pressing system comprises a primary filter device; the primary filtering device comprises a protective shell, a water filtering piece and an extrusion piece; the water filtering piece comprises a plate; a plurality of plates are spliced and enclosed to form a cylindrical structure; the surface of the plate is provided with a filter hole; the filter holes with different inner diameters are distributed in sequence along the circumferential direction of the water filtering piece; a limiting cavity is formed in the protective shell; the water filtering piece is in nested fit with the limiting cavity; the extrusion piece comprises a telescopic rod and a pressing block; the pressing block is correspondingly matched with the inner space of the water filtering piece; the telescopic rod drives the pressing block to reciprocate in the water filtering piece;
a liquid leakage hole is formed in the side face of the protective shell; the liquid leakage holes correspond to the positions of the single plates; a rotary component is arranged on the periphery of the water filtering piece; the rotation assembly drives the water filtering piece to rotate, and the plate pieces which are adjusted differently correspondingly correspond to the positions of the liquid leakage holes respectively.
Further, the rotating assembly comprises a motor, a first roller body, a second roller body and a driving roller; the first roller body is matched with the power output end of the motor; the second roller body and the first roller body are distributed at intervals and are respectively arranged at two sides of the bottom of the water filtering piece in a bearing and attaching mode; the transmission roller is arranged between the first roller body and the second roller body in a matched mode; the outer layer of the driving roller is made of elastic materials.
Further, the primary filter device also comprises a propelling component; the propelling component comprises a base, a guide rail, a frame body and a push rod; the arrangement direction of the guide rail is consistent with the length direction of the water filtering piece; the base is in sliding fit with the guide rail; the rotary component is correspondingly arranged on the top of the base; the push rod is connected with the base through a frame body; the telescopic end of the push rod is attached to one end, away from the protective shell, of the water filtering piece; the telescopic path of the ejector rod is consistent with the length direction of the water filtering piece.
Further, the protective shell is a structure with two through ends; a sealing assembly is arranged at one end, far away from the embedded position of the water filtering piece, of the protective shell in a matched mode; the sealing assembly comprises a frame body and a partition plate; the frame bodies are connected and arranged at the corresponding ends of the protective shell; the partition plate is inserted into the frame body to seal the frame body; the edge of the partition board is hinged and matched with the edge of the frame body; the partition plate is rotated to correspondingly switch the opening and closing of the space in the frame body.
Further, the device also comprises a dehydration unit; the dehydration unit comprises a pressure bearing frame, a driver and a dehydration cylinder; the pressure bearing frame is of an annular structure; the drivers are uniformly distributed on the inner side of the upper end of the pressure bearing frame; the bottom of the dewatering cylinder is matched with the driver and rotates above the pressure bearing frame; a water outlet hole is formed in the surface of the side wall of the dewatering cylinder; the inner wall of the dewatering cylinder is connected with a stirring plate; the stirring plate synchronously rotates along with the dewatering cylinder; a water inlet pipe is correspondingly arranged above the dewatering cylinder; the inlet end of the water inlet pipe is communicated and butted with the liquid leakage hole.
Furthermore, a flow promoting plate is also arranged on the side wall of the dewatering cylinder; the flow promoting plates are obliquely arranged, and the included angle between the flow promoting plates and the horizontal plane is 15-30 degrees; the height of the plate surface of the flow promoting plate is gradually reduced along the rotation direction of the dewatering cylinder; the flow promoting plates are circumferentially and uniformly arranged at the lower end of the dewatering cylinder.
Further, the dewatering unit further comprises a collecting tank; the collecting tanks are correspondingly arranged around the dewatering cylinder; the top height of the side wall of the collecting tank is greater than that of the dewatering cylinder.
Further, the driver comprises a mounting table, a pushing assembly and a roller group; the bottom of the mounting table is connected with the pressure bearing frame; one end of the ejector piece is connected with the mounting table, and the other end of the ejector piece extends towards the center of the dewatering unit along the obliquely upward direction; the roller group is arranged at one end of the ejector component with larger height in a matching way; the step of the dewatering cylinder is matched with the roller group in a rolling way and rotates among the plurality of ejection components.
Further, the ejection piece comprises a fixed cylinder, a first telescopic rod, a second telescopic rod and a two-section bending piece; the fixed cylinder is obliquely arranged, and the bottom of the fixed cylinder is connected with the mounting table; one end of the first telescopic rod is in nested fit with the fixed cylinder, and the other end of the first telescopic rod is connected with the two sections of bent pieces; the roller group comprises a first roller body and a second roller body; the included angle of the two sections of bent pieces faces to the position of the dewatering cylinder; the first wheel body and the second wheel body are respectively arranged on two plate surfaces of the two sections of bent parts; the first wheel body is matched with the bottom of the dewatering cylinder; the second wheel body is matched with the side wall of the dewatering cylinder; the lower end of the second telescopic rod is hinged to the mounting table, and the upper end of the second telescopic rod is hinged to the telescopic part of the first telescopic rod.
Further, the treatment method of the classified recovery type sewage sludge filter pressing system is characterized in that: comprises the following steps of (a) carrying out,
injecting sewage into a water inlet valve structure of a water filtering piece, and adjusting the position of the water filtering piece by using a rotary assembly to enable adaptive filtering holes to rotate to a bottom area;
moving the propelling assembly to enable the corresponding end of the water filtering piece to be embedded into the protective shell;
moving the rotary assembly downwards, driving the water filtering piece to be completely embedded into the protective shell by using the push rod, and squeezing the interior of the water filtering piece by using the pressing block to separate solid impurities in the sewage;
step four, separating the water filtering piece from the protective shell, and repeating the operation of the step one, the step two and the step three to realize periodic one-time filtering treatment so as to realize separation of solid impurities with larger particle size;
step five, the sewage treated in the step three sequentially passes through the liquid leakage hole and the water inlet pipe and then enters the dewatering cylinder; the driver drives the dewatering cylinder to rotate, sewage passes through the water outlet hole and falls into the collecting tank, secondary filtration is completed, and sludge separation is realized.
Has the advantages that: the classified recovery type sewage sludge filter-pressing system comprises a primary filter device; the primary filtering device comprises a protective shell, a water filtering piece and an extrusion piece; the water filtering piece comprises a plate; a plurality of plates are spliced and enclosed to form a cylindrical structure; the surface of the plate is provided with a filter hole; the filter holes with different inner diameters are distributed in sequence along the circumferential direction of the water filtering piece; a limiting cavity is formed in the protective shell; the water filtering piece is in nested fit with the limiting cavity; the extrusion piece comprises a telescopic rod and a pressing block; the pressing block is correspondingly matched with the inner space of the water filtering piece; the telescopic rod drives the pressing block to reciprocate in the water filtering piece; the pressing block is utilized to extrude the sewage in the water filtering piece, so that the water flow can be promoted to penetrate through the filtering holes in an accelerated manner, and the separation of solid impurities from the rest sewage is realized; and the subsequent rotary filtering structure is matched, so that the classification separation of impurities and sludge in the sewage is realized.
Drawings
FIG. 1 is a schematic view of the overall structure of a primary filter device;
FIG. 2 is a detailed view of the primary filter arrangement;
FIG. 3 is a schematic view of a rotary assembly;
FIG. 4 is a side view of the system as a whole;
FIG. 5 is a schematic view of a closure assembly;
FIG. 6 is a schematic view of the overall structure of the dehydration unit;
FIG. 7 is a schematic view of the dehydration unit installation;
FIG. 8 is a detail view of the structure of the dewatering cylinder;
fig. 9 is a schematic view of the driver structure.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
The classified recovery type sewage sludge filter pressing system comprises a primary filter device 1; as shown in fig. 1, the primary filter device 1 comprises a protective shell 11, a water filtering member 12 and an extrusion member 13; the water filtering member 12 comprises a plate member 14; a plurality of plates 14 are spliced and enclosed to form a cylindrical structure; the surface of the plate 14 is provided with a filter hole 141; the filtering holes 141 with different inner diameters are distributed along the circumferential direction of the water filtering piece 12 in sequence; a limiting cavity 101 is arranged in the protective shell 11; the water filtering piece 12 is in nested fit with the limiting cavity 101; the extrusion 13 comprises a telescopic rod 131 and a pressing block 132; the pressing block 132 is correspondingly matched with the inner space of the water filtering piece 12; the telescopic rod 131 drives the pressing block 132 to reciprocate in the water filtering piece 12; the pressing block 132 can extrude the sewage in the water filtering piece 12 to promote the water flow to pass through the filtering holes 141 in an accelerated manner, so that the solid impurities are separated from the rest sewage; in addition, the surface of the water filtering member 12 is communicated with a one-way valve, and sewage can be injected into the water filtering member by using a conveying pipe, and the water inlet structure is a common structure and is not shown in the figure.
As shown in fig. 1 and 2, a liquid leakage hole 102 is formed in the side surface of the protective shell 11; the weep holes 102 correspond in position to the individual plate members 14; a rotary component 15 is arranged on the periphery of the water filtering component 12; the rotating assembly 15 drives the water filtering part 12 to rotate, and the plate parts 14 which are correspondingly adjusted to be different correspond to the positions of the liquid leaking holes 102 respectively; according to the difference of the particle sizes of the solid impurities in the sewage to be treated from different production lines, the proper plate 14 can be correspondingly adjusted, so that the optimal screening effect is obtained; the sewage passing through the filtering holes 141 flows out through the weep holes 102.
As shown in fig. 3, the rotating assembly 15 includes a motor 150, a first roller body 151, a second roller body 152, and a driving roller 153; the first roller body 151 is matched with the power output end of the motor 150; the second roller 152 and the first roller 151 are distributed at intervals and respectively abutted and attached to two sides of the bottom of the water filtering part 12; the driving roller 153 is arranged between the first roller body 151 and the second roller body 152 in a matching manner; the outer layer of the driving roller 153 is made of an elastic material; compared with the traditional single-roller transmission, the combined transmission structure can fully utilize the elastic characteristic of the middle transmission roller 153 and effectively absorb the vibration generated when the roller rotates and jumps, so that the rotation adjusting process of the water filtering piece 12 is more stable; meanwhile, the first roller body 151 and the second roller body 152 are matched to form double-pivot driving, so that the water filtering part 12 is effectively adapted to the outer contour of the section which is not a rotary graph; when actually installing, can also install first roll body 151 and second roll body 152 on the board that has the flexible function of elasticity to can carry out the slant lift adjustment of self as shown by the arrow in the figure, thereby can realize holistic stable transmission with the elastic surface cooperation of driving roller 153.
The primary filtration device 1 also comprises a propulsion assembly 16; as shown in fig. 4, the propelling assembly 16 includes a base 161, a guide rail 162, a frame 163, and an ejector rod 164; the arrangement direction of the guide rail 162 is consistent with the length direction of the water filtering piece 12; the base 161 is in sliding fit with the guide rail 162; the rotating assembly 15 is correspondingly installed on the top of the base 161; the ejector pin 164 is connected to the base 161 through a frame 163; the telescopic end of the push rod 164 is attached to one end of the water filtering piece 12 far away from the protective shell 11; the telescopic path of the push rod 164 is consistent with the length direction of the water filtering piece 12; utilize propulsion subassembly 16 to realize the synchronous motion of gyration subassembly 15, drainage piece 12 and extruded piece 13, after drainage piece 12 and protective housing 11 accomplish preliminary cooperation, the top of base 161 utilizes elevation structure to make gyration subassembly 15 and drainage piece 12 break away from the cooperation, and push-up rod 164 drive drainage piece 12 is embedded into in the protective housing 11 completely to accomplish above-mentioned solid impurity separation.
The protective shell 11 is a structure with two through ends; a sealing assembly 17 is arranged at one end of the protective shell 11 far away from the embedded position of the water filtering piece 12 in a matching way; as shown in fig. 5, the closure assembly 17 includes a frame 171 and a partition 172; the frame 171 is connected to the corresponding end of the protective shell 11; the partition plate 172 is inserted into the frame 171 to close the frame 171; the edge of the partition 172 is hinged at the edge of the frame 171; the partition plate 172 is rotated to correspondingly switch the opening and closing of the space in the frame 171; the lateral screwing-in and screwing-out type movable form can avoid the situation that the structure is easy to be pushed by water pressure to cause collision danger in the conventional flip cover, and has better control stability.
Also comprises a dehydration unit 2; as shown in fig. 6 and 7, the dewatering unit 2 includes a pressure bearing frame 21, a driver 22, and a dewatering cylinder 23; the pressure bearing frame 21 is of an annular structure; the drivers 22 are uniformly distributed on the inner side of the upper end of the pressure bearing frame 21; the bottom of the dewatering cylinder 23 is matched with the driver 22 and rotates above the pressure bearing frame 21; a water outlet hole 231 is formed in the surface of the side wall of the dewatering cylinder 23; the inner wall of the dewatering cylinder 23 is connected with a stirring plate 232; the stirring plate 232 rotates synchronously with the dewatering cylinder 23; a water inlet pipe 233 is correspondingly arranged above the dewatering cylinder 23; the inlet end of the water inlet pipe 233 is communicated and butted with the liquid leakage hole 102; the sewage from the liquid leakage hole 102 flows into the dewatering cylinder 23 through the water inlet pipe 233; during the rotation of the dewatering cylinder 23, the stirring plate 232 pushes the sewage in the dewatering cylinder to flow, and the sewage passes through the water outlet 231 on the cylinder wall under the action of centrifugal force, so that secondary filtration is completed.
As shown in fig. 8, the arrow in the figure is the rotation direction of the dewatering cylinder 23, and the side wall of the dewatering cylinder 23 is further provided with a flow promoting plate 234; the flow promoting plate 234 is obliquely arranged, and the included angle between the flow promoting plate 234 and the horizontal plane is 15-30 degrees; the plate surface of the flow promoting plate 234 is gradually reduced in height along the rotation direction of the dewatering cylinder 23; the flow promoting plates 234 are circumferentially and uniformly arranged at the lower end part of the dewatering cylinder 23; the flow promoting plate 234 has the function of intensively stirring the sewage near the cylinder wall, so that the overall flow uniformity of the sewage can be enhanced, and the filtering effect is improved; if the included angle between the water outlet hole and the horizontal plane is too small, the stirring effect in the rotating direction cannot be achieved, and if the included angle is too large, transitional streaming is easily caused, and the sewage can be interfered to pass through the water outlet hole 231.
The dewatering unit 2 also comprises a collection tank 25; the collecting tank 25 is correspondingly arranged around the dewatering cylinder 23; the top height of the side wall of the collecting tank 25 is greater than that of the dewatering cylinder 23, and the collecting tank is used for accumulating sewage subjected to secondary filtration; while the remaining part inside the dewatering cylinder 23 can be collected for the filter-pressing treatment of sludge.
As shown in fig. 7 and 9, the driver 22 includes a mounting table 221, an ejector 26 and a roller set 27; the bottom of the mounting table 221 is connected with the pressure bearing frame 21; one end of the ejector 26 is connected with the mounting table 221, and the other end extends towards the center of the dewatering unit 2 along an oblique upward direction; the roller group 27 is arranged at one end of the ejector component 26 with a larger height in a matching way; the dewatering cylinder 23 is matched with the roller group 27 in a rolling way and rotates among the plurality of pushing and ejecting parts 26, and compared with the form of belt transmission at the center of a rotating shaft, the edge multi-point transmission has the advantages of more uniform stress and better stability.
The ejector 26 comprises a fixed cylinder 261, a first telescopic rod 262, a second telescopic rod 263 and a two-section bending piece 264; the fixed cylinder 261 is obliquely arranged, and the bottom of the fixed cylinder is connected with the mounting table 221; one end of the first telescopic rod 262 is nested and matched with the fixed cylinder 261, and the other end of the first telescopic rod 262 is connected with the two-section bent piece 264; the roller set 27 includes a first wheel 271 and a second wheel 272; the included angle of the two sections of bent pieces 264 faces to the position of the dewatering cylinder 23; the first wheel body 271 and the second wheel body 272 are respectively arranged on two plate surfaces of the two-section bending piece 264; the first wheel body 271 is matched with the bottom of the dewatering cylinder 23; the second wheel body 272 is matched with the side wall of the dewatering cylinder 23; the lower end of the second telescopic rod 263 is hinged with the mounting table 221, and the upper end of the second telescopic rod 263 is hinged with the telescopic part of the first telescopic rod 262; by means of the matching of the first telescopic rod 262 and the second telescopic rod 263, the pushing piece 26 can be led to achieve a telescopic effect in the rotation radial direction, so that the dewatering cylinders 23 of different specifications and sizes can be adapted, and the working condition adaptability and the refitting convenience of the system are greatly improved; the first wheel body 271 and the second wheel body 272 realize synchronous sliding fit of the side surface and the bottom surface, so that the driving capability can be ensured by utilizing gravity to enhance friction force, and meanwhile, the deviation prevention constraint of the side surface can be realized.
The treatment method of the classified recovery type sewage sludge filter pressing system is characterized in that: comprises the following steps of (a) carrying out,
injecting sewage into the water filtering piece 12 through a water inlet valve structure of the water filtering piece, and adjusting the position of the water filtering piece 12 by using the rotating assembly 15 to enable the adaptive filtering holes 141 to rotate to the bottom area;
step two, moving the propelling component 16 to enable the corresponding end of the water filtering piece 12 to be embedded into the protective shell 11;
thirdly, the rotating assembly 15 is moved downwards, the water filtering piece 12 is driven by the ejector rod 164 to be completely embedded into the protective shell 11, and the pressing block 132 is used for extruding the inside of the water filtering piece 12, so that solid impurities in the sewage are separated;
step four, separating the water filtering piece 12 from the protective shell 11, and repeating the operations of the step one, the step two and the step three to realize periodic one-time filtering treatment and realize separation of solid impurities with larger particle sizes;
step five, the sewage treated in the step three sequentially passes through the liquid leakage hole 102 and the water inlet pipe 233 and then enters the dewatering cylinder 23; the driver 22 drives the dewatering cylinder 23 to rotate, sewage passes through the water outlet hole 231 and falls into the collecting tank 25, secondary filtration is completed, and sludge separation is realized.
The above description is only of the preferred embodiments of the present invention, and it should be noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the invention and these are intended to be within the scope of the invention.
Claims (10)
1. Categorised recovery type sewage sludge filter pressing system, its characterized in that: comprises a primary filtering device (1); the primary filtering device (1) comprises a protective shell (11), a water filtering piece (12) and an extrusion piece (13); the water filtering piece (12) comprises a plate piece (14); a plurality of plates (14) are spliced and enclosed to form a cylindrical structure; the surface of the plate (14) is provided with a filtering hole (141); the filter holes (141) with different inner diameters are distributed along the circumferential direction of the water filtering piece (12) in sequence; a limiting cavity (101) is arranged in the protective shell (11); the water filtering piece (12) is in nested fit with the limiting cavity (101); the extrusion part (13) comprises a telescopic rod (131) and a pressing block (132); the pressing block (132) is correspondingly matched with the inner space of the water filtering piece (12); the telescopic rod (131) drives the pressing block (132) to reciprocate in the water filtering piece (12);
a liquid leakage hole (102) is formed in the side face of the protective shell (11); the liquid leakage holes (102) correspond to the positions of the single plate pieces (14); a rotary component (15) is arranged on the periphery of the water filtering piece (12); the rotation assembly (15) drives the water filtering piece (12) to rotate, and the plate pieces (14) which are adjusted to be different correspondingly correspond to the positions of the liquid leakage holes (102).
2. The classified recovery type sewage sludge press filtration system according to claim 1, wherein: the rotary component (15) comprises a motor (150), a first roller body (151), a second roller body (152) and a transmission roller (153); the first roller body (151) is matched with a power output end of the motor (150); the second roller body (152) and the first roller body (151) are distributed at intervals and are respectively abutted and attached to two sides of the bottom of the water filtering piece (12); the transmission roller (153) is arranged between the first roller body (151) and the second roller body (152) in a matched mode; the outer layer of the driving roller (153) is made of elastic materials.
3. The classified recovery type sewage sludge press filtration system according to claim 2, wherein: the primary filtering device (1) also comprises a propelling component (16); the propelling component (16) comprises a base (161), a guide rail (162), a frame body (163) and a pushing rod (164); the arrangement direction of the guide rail (162) is consistent with the length direction of the water filtering piece (12); the base (161) is in sliding fit with the guide rail (162); the rotating assembly (15) is correspondingly arranged on the top of the base (161); the ejector rod (164) is connected with the base (161) through a frame body (163); the telescopic end of the ejector rod (164) is attached to one end, away from the protective shell (11), of the water filtering piece (12); the telescopic path of the push rod (164) is consistent with the length direction of the water filtering piece (12).
4. The classified recovery type sewage sludge press filtration system according to claim 1, wherein: the protective shell (11) is a structure with two through ends; a sealing assembly (17) is arranged at one end, far away from the embedded position of the water filtering piece (12), of the protective shell (11) in a matched mode; the closure assembly (17) comprises a frame (171) and a partition (172); the frame body (171) is connected and installed at the corresponding end of the protective shell (11); the partition plate (172) is inserted into the frame body (171) to seal the frame body (171); the edge of the partition plate (172) is in hinged fit at the edge of the frame body (171); the partition plate (172) is rotated to switch the opening and closing of the space in the housing (171).
5. The classified recovery type sewage sludge press filtration system according to claim 1, wherein: also comprises a dehydration unit (2); the dehydration unit (2) comprises a pressure bearing frame (21), a driver (22) and a dehydration cylinder (23); the pressure bearing frame (21) is of an annular structure; the drivers (22) are uniformly distributed on the inner side of the upper end of the pressure bearing frame (21); the bottom of the dewatering cylinder (23) is matched with the driver (22) and rotates above the pressure bearing frame (21); a water outlet hole (231) is formed in the surface of the side wall of the dewatering cylinder (23); the inner wall of the dewatering cylinder (23) is connected with a stirring plate (232); the stirring plate (232) rotates synchronously with the dewatering cylinder (23); a water inlet pipe (233) is correspondingly arranged above the dewatering drum (23); the inlet end of the water inlet pipe (233) is communicated and butted with the liquid leakage hole (102).
6. The classified recovery type sewage sludge press filtration system according to claim 5, wherein: the side wall of the dewatering cylinder (23) is also provided with a flow promoting plate (234); the flow promoting plate (234) is obliquely arranged, and the included angle between the flow promoting plate and the horizontal plane is 15-30 degrees; the plate surface of the flow promoting plate (234) is gradually reduced in height along the rotation direction of the dewatering cylinder (23); the flow promoting plates (234) are circumferentially and uniformly arranged at the lower end part of the dewatering cylinder (23).
7. The classified recovery type sewage sludge press filtration system according to claim 6, wherein: the dewatering unit (2) further comprises a collection tank (25); the collecting tank (25) is correspondingly arranged around the dewatering cylinder (23); the top height of the side wall of the collecting tank (25) is greater than the top height of the dewatering cylinder (23).
8. The classified recovery type sewage sludge press filtration system according to claim 5, wherein: the driver (22) comprises a mounting table (221), an ejector (26) and a roller group (27); the bottom of the mounting table (221) is connected with the pressure bearing frame (21); one end of the ejector (26) is connected with the mounting table (221), and the other end of the ejector extends towards the center of the dewatering unit (2) along the obliquely upward direction; the roller group (27) is arranged at one end of the ejector (26) with larger height in a matching way; the dewatering cylinder (23) is matched with the roller group (27) in a rolling way and rotates among the plurality of pushing and ejecting components (26).
9. The classified recovery type sewage sludge press filtration system according to claim 8, wherein: the ejector (26) comprises a fixed cylinder (261), a first telescopic rod (262), a second telescopic rod (263) and a two-section bending piece (264); the fixed cylinder (261) is obliquely arranged, and the bottom of the fixed cylinder is connected with the mounting table (221); one end of the first telescopic rod (262) is in nested fit with the fixed cylinder (261), and the other end of the first telescopic rod is connected with the two-section bent piece (264); the roller group (27) comprises a first wheel body (271) and a second wheel body (272); the included angle of the two sections of bent pieces (264) faces to the position of the dewatering cylinder (23); the first wheel body (271) and the second wheel body (272) are respectively arranged on two plate surfaces of the two-section bending piece (264); the first wheel body (271) is matched with the bottom of the dewatering cylinder (23); the second wheel body (272) is matched with the side wall of the dewatering cylinder (23); the lower end of the second telescopic rod (263) is hinged with the mounting table (221), and the upper end of the second telescopic rod is hinged with the telescopic part of the first telescopic rod (262).
10. The treatment method of the classified recovery type sewage sludge press filtration system according to any one of claims 1 to 9, wherein: comprises the following steps of (a) carrying out,
injecting sewage into the filter element (12) through a water inlet valve structure of the filter element, and adjusting the position of the filter element (12) by using a rotary component (15) to enable an adaptive filter hole (141) to rotate to a bottom area;
secondly, moving the propelling component (16) to enable the corresponding end of the water filtering piece (12) to be embedded into the protective shell (11);
moving the rotary component (15) downwards, driving the water filtering piece (12) to be completely embedded into the protective shell (11) by using the ejector rod (164), and squeezing the interior of the water filtering piece (12) by using the pressing block (132) to separate solid impurities in the sewage;
step four, separating the water filtering piece (12) from the protective shell (11), and repeating the operations of the step one, the step two and the step three to realize periodic one-time filtering treatment and realize separation of solid impurities with larger particle sizes;
step five, the sewage treated in the step three sequentially passes through the liquid leakage hole (102) and the water inlet pipe (233) and then enters the dewatering cylinder (23); the driver (22) drives the dewatering cylinder (23) to rotate, sewage passes through the water outlet hole (231) and falls into the collecting tank (25), secondary filtration is completed, and sludge separation is achieved.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202011005002.1A CN112121531A (en) | 2020-09-23 | 2020-09-23 | Classified recovery type sewage sludge filter-pressing system and treatment method thereof |
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| CN202011005002.1A CN112121531A (en) | 2020-09-23 | 2020-09-23 | Classified recovery type sewage sludge filter-pressing system and treatment method thereof |
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Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201121272Y (en) * | 2007-10-23 | 2008-09-24 | 刘德树 | Dewaterer |
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