CN114804574B - Vertical sludge concentration and dehydration integrated machine - Google Patents
Vertical sludge concentration and dehydration integrated machine Download PDFInfo
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- CN114804574B CN114804574B CN202210343386.0A CN202210343386A CN114804574B CN 114804574 B CN114804574 B CN 114804574B CN 202210343386 A CN202210343386 A CN 202210343386A CN 114804574 B CN114804574 B CN 114804574B
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- 239000010802 sludge Substances 0.000 title claims abstract description 186
- 230000018044 dehydration Effects 0.000 title claims abstract description 41
- 238000006297 dehydration reaction Methods 0.000 title claims abstract description 41
- 238000001125 extrusion Methods 0.000 claims abstract description 190
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 111
- 230000007246 mechanism Effects 0.000 claims abstract description 64
- 238000003756 stirring Methods 0.000 claims abstract description 60
- 230000005540 biological transmission Effects 0.000 claims abstract description 41
- 238000001914 filtration Methods 0.000 claims abstract description 32
- 230000033001 locomotion Effects 0.000 claims abstract description 29
- 238000004140 cleaning Methods 0.000 claims description 128
- 238000007599 discharging Methods 0.000 claims description 52
- 239000007788 liquid Substances 0.000 claims description 24
- 238000003825 pressing Methods 0.000 claims description 21
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 11
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 11
- 241001330002 Bambuseae Species 0.000 claims description 11
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 11
- 239000011425 bamboo Substances 0.000 claims description 11
- 238000005096 rolling process Methods 0.000 claims description 11
- 230000001360 synchronised effect Effects 0.000 claims description 11
- 238000005406 washing Methods 0.000 claims description 10
- 238000012546 transfer Methods 0.000 claims description 9
- 239000000178 monomer Substances 0.000 claims description 7
- 238000002156 mixing Methods 0.000 claims description 6
- 238000004804 winding Methods 0.000 claims description 5
- 239000012141 concentrate Substances 0.000 claims 2
- 230000000694 effects Effects 0.000 abstract description 15
- 230000008859 change Effects 0.000 abstract description 8
- 238000007790 scraping Methods 0.000 description 30
- 238000000034 method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 7
- 230000000903 blocking effect Effects 0.000 description 6
- 230000008901 benefit Effects 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 4
- 238000005086 pumping Methods 0.000 description 4
- 239000007921 spray Substances 0.000 description 4
- 238000005056 compaction Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000013016 damping Methods 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 210000001503 joint Anatomy 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005370 electroosmosis Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000003031 feeding effect Effects 0.000 description 1
- 230000010006 flight Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
- C02F11/123—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering using belt or band filters
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
- C02F11/126—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering using drum filters
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/14—Maintenance of water treatment installations
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention relates to a vertical sludge concentration and dehydration integrated machine, which comprises a sludge concentration system and a sludge dehydration system, wherein the sludge concentration system comprises a concentration unit and a sludge outlet unit, and the concentration unit comprises a concentration cylinder, a filter screen cylinder and a stirring mechanism; the sludge dewatering system comprises an extrusion roller capable of rotating around the axis of the sludge dewatering system and an extrusion plate. According to the invention, on one hand, by arranging the multi-screw stirring paddles, not only is the sludge concentration efficiency increased, but also the water in the concentration area is conveniently converged and is filtered to the water filtering area after upwelling, so that the sludge concentration efficiency and effect are further improved, the water content of the concentrated sludge is reduced, and the subsequent dehydration difficulty and the dehydration cost of the sludge are also reduced; on the other hand, the length of the arc extrusion channel is extended, the thickness change rate is small, the dehydration rate is effectively improved, and meanwhile, the dehydrated sludge is conveniently discharged under the transmission of the arc extrusion channel formed by the same-direction movement, so that the dehydration efficiency is further improved.
Description
Technical Field
The invention belongs to the field of sludge treatment equipment, and particularly relates to a vertical sludge concentration and dehydration integrated machine.
Background
Along with the development of social economy and the acceleration of urban process, the quantity of urban sewage treatment plants and the accompanying sludge is rapidly increased, and the sludge treatment equipment is continuously updated to meet the requirement of sludge treatment. In the field, the sludge treatment equipment generally comprises a concentration unit and a sludge dewatering system which are independently arranged, when sludge treatment is carried out, the concentration unit is used for concentrating thinner sludge, and the sludge with reduced water content after concentration enters the sludge dewatering system for dewatering.
At present, the adopted vertical sludge concentration system basically extrudes sludge in a stirring extrusion mode, but along with the flowing of the sludge, the sludge which is closer to a sludge outlet is harder to extrude, and even if water can be extruded from the inside, the water cannot be smoothly discharged outwards, so that the water content after concentration cannot reach the optimal standard, the difficulty of dehydration of a subsequent sludge dehydration system is increased, and the sludge dehydration cost is also increased.
Simultaneously, the corresponding mud outlet of the vertical concentration unit basically horizontally extends, and comprises a first panel, a second panel, a first end plate, a second end plate and a mud outlet baffle, wherein the first panel and the second panel are arranged in a way that the distance from top to bottom is gradually reduced, the first end plate and the second end plate are positioned at two ends and form a mud outlet cavity together with the first panel and the second panel, the mud outlet baffle is arranged at the bottom of the first panel or the second panel in a overturning and adjusting way, and the thickness of the mud outlet is adjusted in a overturning way through the mud outlet baffle, so that the mud outlet amount is controlled.
However, this mode of flip adjustment has the following technical problems:
1. Once the mud is discharged, if the control of the mud discharge amount is required, the mud discharge thickness is generally adjusted to change the mud discharge amount, however, especially in the adjustment process of reducing the mud discharge thickness, if the adjustment is directly turned over, the adjustment is very difficult, and the control is difficult;
2. the overturning adjustment needs space and sealing, so that the smoothness of the inner wall surface of the mud discharging baffle is changed along with the change of the angle of the mud discharging baffle, thus affecting the mud discharging efficiency and further affecting the mud discharging amount;
3. The thickness of the discharged sludge is kept uniform, and the compaction force provided by the sludge discharging baffle is smaller when the sludge discharging baffle is closer to the sludge discharging opening, so that the sludge discharging amount is also influenced.
Meanwhile, the adopted sludge dewatering system is more in two types of electro-osmosis type and extrusion type of the extrusion roller, however, aiming at extrusion type of the extrusion roller, the sludge is extruded and dewatered after being concentrated in an extrusion channel mainly through an extrusion channel formed by the extrusion roller and a corresponding extrusion plate.
However, the extrusion channel has a short formation length, and the extrusion channel has a very high change rate in order to obtain a good dewatering efficiency and effect, so that the following technical drawbacks are present:
1. the efficiency of sludge discharge from the extrusion channel is very low, and the dehydration rate is affected due to the fact that the extrusion channel is too short;
2. The stress to be applied to the press cylinder and the press plate is very large, and thus deformation is easily caused, thereby affecting the thickness change rate of the press channel and thus the dehydration.
Disclosure of Invention
The invention aims to solve the technical problem of overcoming the defects of the prior art and providing an improved vertical sludge concentration and dehydration integrated machine.
In order to solve the technical problems, the invention adopts the following technical scheme:
The vertical sludge concentration and dehydration integrated machine comprises a sludge concentration system and a sludge dehydration system, wherein the sludge concentration system comprises a concentration unit and a sludge outlet unit, the concentration unit comprises a concentration cylinder, a filter screen cylinder and a stirring mechanism, a water filtering area is formed between the concentration cylinder and the filter screen cylinder, the stirring mechanism is positioned in the filter screen cylinder and forms a concentration area, and the stirring mechanism comprises a stirring shaft and a stirring paddle; the sludge dewatering system comprises an extrusion roller and an extrusion plate which can rotate around the axis of the extrusion roller, wherein an arc-shaped extrusion channel is formed between the outer wall of the extrusion roller and the extrusion plate, the arc-shaped extrusion channel is provided with a sludge inlet and a sludge outlet, the length of the arc-shaped extrusion channel is L, the circumference of the extrusion roller is C, the stirring paddles comprise a plurality of spiral sheets which are alternately wound on the stirring shaft, the outer side surface of each spiral sheet is attached to the inner wall of the filter screen cylinder, the inner side of each spiral sheet is provided with a plurality of vertically through mud channel holes, the mud channel holes extend along the winding direction of the spiral sheets or the mud channel holes are distributed at intervals along the winding direction of the spiral sheets, and the water in the concentration area is filtered from the filter screen cylinder to the water filtering area after moving from the stirring paddles to the top of the filter screen cylinder;
The extrusion plate is composed of an annular filter belt, the thickness of the arc extrusion channel formed by the mud inlet and the mud outlet is h1 and h2 respectively, wherein h2 is smaller than h1, the thickness of the arc extrusion channel from the mud inlet to the mud outlet is gradually reduced, the mud dehydration system further comprises a mud outlet guide channel arranged at the mud outlet, the annular filter belt is consistent with the movement direction of the extrusion roller, and the mud is transmitted from the mud inlet to the mud outlet guide channel. Preferably, the mud discharging unit comprises a first side plate, a second side plate, a first end plate and a second end plate, wherein the first side plate and the second side plate are positioned at two sides, the first end plate and the second end plate form a mud discharging cavity which is inclined inwards from two sides from top to bottom, the upper part of the mud discharging cavity is communicated with a mud discharging channel, the lower end part of the first side plate is attached to an extrusion roller of the mud dewatering system, the mud discharging unit further comprises a spring plate which bends inwards from outside to inside, a multi-connecting-rod interlocking type adjusting assembly, a folded edge of the spring plate is aligned with the lower end surface of the second side plate, the upper part of the spring plate is fixed at the inner side or the outer side of the second side plate, the lower part of the spring plate extends downwards to form a mud discharging opening with the lower end part of the first side plate, and the multi-connecting-rod interlocking type adjusting assembly adjusts the distance between the lower part of the spring plate and the extrusion roller under the state that the multi-connecting rods keep relative locking to adjust the size of the mud discharging opening. The mud outlet width is relatively balanced and adjusted under the interlocking of the multiple connecting rods, the mud outlet amount is conveniently and accurately controlled, meanwhile, the provided compaction force is relatively uniform, the inner wall of the mud outlet is relatively smooth and has no overturning seam, the smooth mud outlet of the mud is convenient, the structure is simple, and the implementation is convenient.
Preferably, the muddy water passage hole is positioned at the joint of the spiral sheet and the stirring shaft. The advantage of setting like this is, ensures that the (mixing) shaft is in relative moist state, not only is favorable to water to assemble and upwards flow, can effectively reduce the slime rate of (mixing) shaft moreover to promote mud concentration water efficiency, reduce the clean degree of difficulty of stirring rake moreover.
According to a specific and preferred aspect of the invention, a plurality of mud water passage holes are formed, and the mud water passage holes on the plurality of spiral sheets are vertically spaced and aligned along the length direction of the stirring shaft. The layout not only greatly increases the water yield of mud water concentration, but also is very convenient for water to flow from the inside of the concentration area to the water filtering area (the main reason is that the technical effect of upwelling is formed).
Preferably, the front projection of the mud water passage holes on the spiral sheets on the horizontal plane is a plurality of notches uniformly distributed at intervals around the center of the stirring shaft. Therefore, water in the concentration area can be uniformly gathered towards the notch, and meanwhile, the concentrated water can be conveniently discharged to the water filtering area after being upwelled.
Further, the top and bottom of the plurality of spiral sheets are respectively aligned. The shaping of convenient stirring rake can provide the concentrated effect of best moreover.
According to yet another specific and preferred aspect of the present invention, each of the spiral sheets includes a sheet body fixedly wound on the stirring shaft, a spring plate connected to the outer side of the sheet body, and a flexible wiper blade provided on the outer side of the spring plate, wherein the flexible wiper blade is abutted against the inner wall of the filter screen cylinder from the outer side. Here, through the scraper spare that spring plate and flexible doctor-bar constitute, not only can effectively reduce filter screen cylinder wear rate, and noise, avoid mud to cause the mesh jam of filter screen cylinder moreover.
According to a further specific implementation and preferred aspect of the invention, a receiving hopper with gradually reduced caliber is arranged at the top of the filter screen cylinder, wherein the upper end part of the receiving hopper is communicated with the mud inlet channel. By the design, a funnel-type rapid mud feeding effect is formed, and meanwhile, mud splashing can be avoided.
In addition, the concentration unit still includes the wiper mechanism that sets up in the drainage district and can wash filter screen cylinder periphery. Here, through the setting of wiper mechanism to ensure the drainage efficiency of filter screen cylinder, more be favorable to the concentrated play water of mud.
Preferably, the cleaning mechanism moves synchronously with the stirring shaft to clean the periphery of the filter screen cylinder. That is, the screen cylinder may be cleaned simultaneously during stirring, or the screen cylinder and the stirring paddle may be cleaned simultaneously after the concentration process.
Specifically, the (mixing) shaft includes the axle body, form the last axis body and the lower axis body of tip about the axle body, lower axis body passes through the axle bed and is connected with the bottom relative rotation of concentrated section of thick bamboo, filter screen section of thick bamboo, go up the axis body and wear out the setting from filter screen section of thick bamboo and concentrated section of thick bamboo top, wherein go up the inside washing liquid channel that forms of axis body, washing mechanism is including being located filter screen section of thick bamboo top and the first washing pipeline that communicates with the washing liquid channel, keep away from the second washing pipeline that upper axis body tip downwardly extending from first washing pipeline, and drainage pipe and water supply unit, first washing pipeline extends along the radial of filter screen section of thick bamboo, the second washing pipeline extends along the axial of filter screen section of thick bamboo.
In the embodiment, the cleaning holes are directly formed in the cleaning pipeline or the spray heads are arranged on the cleaning pipeline, and cleaning liquid is sprayed out of the cleaning holes or the spray heads to wash the periphery of the filter screen cylinder.
According to yet another specific implementation and preferred aspect of the present invention, the adjusting assembly includes a plurality of adjusting units spaced apart along the length of the sludge outlet, and a power unit for synchronously connecting and synchronously adjusting the plurality of adjusting units. Therefore, the outlet width of the mud is consistent, and the mud output can be accurately controlled.
Preferably, each adjusting unit comprises a first adjusting rod, a second adjusting rod and a third adjusting rod which can be locked relatively, wherein the first adjusting rod is arranged in a rotating way from the middle part; one end part of the second adjusting rod is rotationally connected with one end part of the first adjusting rod, and the other end part of the second adjusting rod is fixed on the outer side of the lower part of the spring plate; the two ends of the third adjusting rod are respectively and rotatably connected with the second side plate and the rotating centers of the first adjusting rods, and the power device acts on the other end of each first adjusting rod and is used for driving the first adjusting rods to synchronously rotate around the turning points for adjustment. The arrangement of the three rods is convenient for quantitative adjustment of the width of the mud outlet.
Preferably, a first connecting seat is fixedly arranged on the outer side of the lower portion of the spring plate, a second connecting seat is fixedly arranged on the outer side of the second side plate, the second adjusting rod is fixedly connected with the first connecting seat from the end portion, the third adjusting rod is rotatably connected with the second connecting seat from the end portion, and the turning points of the two end portions of the third adjusting rod and the turning points of the second adjusting rod form a closed triangle. The structure is stable, the acting force provided is quite uniform, the compactness of the discharged mud is ensured to be the same, and the control of the discharged mud amount is facilitated.
According to still another specific implementation and preferred aspect of the present invention, the power device comprises a power pressing rod extending along the length direction of the mud outlet, a connecting body integrally arranged with the power pressing rod and movably connected with the end of each first adjusting rod far away from the spring plate respectively, and a driving part for driving the power pressing rod to lift up and down, wherein the connecting body drives the first adjusting rods to rotate around the turning points in the lifting movement of the power pressing rod. The lifting motion of a power compression bar is adopted, so that a plurality of first adjusting rods synchronously rotate.
Preferably, a sliding groove extending in the length direction of the shaft is formed at an end of the first adjustment lever remote from the spring plate, and the link moves in the sliding groove to adjust the first adjustment lever angle. The first adjusting rod is turned around the turning point by the linear motion of the connecting body.
According to yet another specific and preferred aspect of the present invention, the upper portion of the spring plate is fixed to the outer side of the second side plate, and the inner side wall of the lower portion of the spring plate is aligned with the lower end surface of the second side plate and extends downward. Thus facilitating smooth sludge discharge from the sludge outlet.
Preferably, the lower part of the spring plate is also provided with a flexible scraping blade, and the flexible scraping blade is abutted against the inner wall of the sludge inlet channel of the sludge dewatering system. The mud scraping plate is prevented from wearing the inner wall of the mud entering channel, and particularly the inner wall of the mud entering channel in motion is avoided.
Further, a flexible wiper blade is secured to the outer side of the lower portion of the spring plate. Avoiding the obstruction of sludge output caused by the built-in.
In addition, the lower tip of first curb plate is located the top of second curb plate lower tip, and still is equipped with and hinders mud board and flexible clamp plate at the lower tip of first curb plate, wherein with first curb plate and extrusion cylinder outer wall transitional coupling through hinder mud board, flexible clamp plate pressure is established at extrusion cylinder outer wall. Therefore, the damping plate can prevent the sludge from leaking from the sludge outlet, and meanwhile, the phenomenon that the rotation speed of the extrusion roller is influenced due to overlarge extrusion force of the sludge on the extrusion roller is avoided.
Preferably, the annular filter belt comprises a filter belt body and a transmission roller set formed in the filter belt body, wherein the transmission roller set comprises a plurality of extrusion rollers, a mud discharging transmission roller and a transfer transmission roller which are distributed around the center of the extrusion roller at intervals, and the filter belt body is sleeved on the extrusion rollers, the mud discharging transmission roller and the transfer transmission roller and forms a closed annular shape. Therefore, the extrusion roller forms an effective support of the arc extrusion channel, the extruded sludge is taken out of the sludge guiding channel through the sludge outlet transmission roller, and the annular movement of the annular filter belt is realized through the transfer transmission of the transfer transmission roller.
Further, the squeeze rollers are movably arranged along the radial direction of the squeeze roller in an adjustable manner. Therefore, the thickness of the arc-shaped extrusion channel is adjusted according to actual needs so as to meet extrusion needs.
According to a specific and preferred aspect of the invention, the sludge-conveying roller is in synchronous driving connection with the squeezing roller, which moves synchronously with the filter belt body. Therefore, the same power source can be shared, and the synchronous movement control of the extrusion roller and the filter belt body is facilitated.
According to a further specific implementation and preferred aspect of the present invention, the sludge dewatering system further comprises a pressing seat formed inside to form a closed pressing cavity with the filter belt body and the pressing roller; and the negative pressure vacuumizing mechanism is communicated with the extrusion cavity of the extrusion seat, wherein a mud outlet guide channel is formed between the filter belt body between the mud outlet and the mud outlet transmission roller and the extrusion seat, the negative pressure vacuumizing mechanism keeps negative pressure formed in the extrusion cavity, and water extruded and separated is pumped out of the extrusion cavity. Through negative pressure pumping, not only conveniently filter out the collection of muddy water by the filter belt body, but also can further promote extrusion dehydration rate (avoid the filtration pore to appear blocking, can suck in case there is water simultaneously).
According to still another specific implementation and preferred aspect of the present invention, the sludge outlet transmission roller is arranged flush with the uppermost squeeze roller, the filter belt body forming the sludge outlet guide channel is horizontally arranged, the sludge dewatering system further comprises an inlet sludge guide and an outlet sludge guide respectively arranged at the inlet and the outlet of the sludge outlet guide channel, wherein the inlet sludge guide comprises a sludge inlet scraper extending along the length direction of the squeeze roller and having the lower part abutting against the surface of the squeeze roller, and an arc-shaped sludge guide plate arranged at the top of the sludge inlet scraper and in arc transition to the top of the squeeze seat; the outlet mud guide piece comprises a mud discharging joint which is in butt joint with an arc-shaped channel formed at the position of the mud discharging transmission roller and extends along the tangential direction, and a mud discharging scraping plate which is arranged in the mud discharging joint and is abutted against the surface of the filter belt body. The guiding and mud feeding scraping plates formed at the inlets of the mud outlet guiding channels facilitate the mud to enter the mud outlet guiding channels, and the probability of the mud being adhered to the surface of the extrusion roller is reduced under the scraping of the mud scraping plates; the mud discharging connector and the mud discharging scraping plate are formed at the outlet of the mud discharging guide channel, so that the mud is convenient to throw out from the mud discharging guide channel, and meanwhile, the probability that the mud is adhered to the annular filter surface is reduced under the scraping of the mud discharging scraping plate.
Preferably, a mud discharging channel is formed in the mud discharging connector, an angle formed between the mud discharging channel and the vertical direction is 30-60 degrees, and the mud discharging scraper forms the bottom wall of the mud discharging channel. The mud scraping effect formed at the moment is good, the centrifugal throwing out of the mud is facilitated, and the mud yield is improved.
Preferably, the mud outlet is located above the mud inlet, and the mud inlet extends up and down tangentially to the circumference of the extrusion drum. Thus being beneficial to the concentrated sludge to enter the arc-shaped extrusion channel and improving the dehydration efficiency.
In addition, the surface of the extrusion roller is provided with a water filtering hole, the sludge dewatering system further comprises an extrusion roller cleaning mechanism for cleaning the surface of the extrusion roller respectively and a filter belt cleaning mechanism for cleaning the front surface and the back surface of the annular filter belt respectively, and the extrusion roller cleaning mechanism and the filter belt cleaning mechanism synchronously clean the extrusion roller and the annular filter belt. The squeezing roller collects muddy water filtered from the inside from the water filtering holes, so that the dehydration rate is improved; meanwhile, under the arrangement of the cleaning mechanism, the blockage of the water filtering holes and the filtering holes of the annular filtering belt is avoided, so that the squeezing dehydration rate of the sludge is improved.
Further, the extrusion roller cleaning mechanism is positioned between the mud inlet and the mud outlet, the filter belt cleaning mechanism is positioned at two sides of the moving path of the annular filter belt, and both the extrusion roller cleaning mechanism and the filter belt cleaning mechanism comprise a cleaning seat forming a cleaning cavity, a cleaning rolling brush positioned in the cleaning cavity and a cleaning liquid pipeline, wherein the cleaning liquid pipeline comprises a liquid inlet pipe communicated with the water outlet of the sludge concentration cylinder and a water outlet pipe communicated with the cleaning seat; and the cleaning rolling brushes of the extrusion roller cleaning mechanism and the cleaning rolling brushes of the extrusion roller are rotated in opposite directions with the extrusion roller, and the cleaning rolling brushes of the filter belt cleaning mechanism positioned on two sides of the annular filter belt are staggered up and down and synchronously rotated in opposite directions. The arrangement is reasonable in structure, and the outer wall of the extrusion roller and the annular filter belt are cleaned to directly form a clean arc-shaped extrusion channel. Meanwhile, the cleaning roller brush is beneficial to cleaning in the opposite movement, and is beneficial to the movement of the extrusion roller and the annular filter belt, especially the opposite movement of the front and back surfaces of the annular filter belt in a staggered way, so that the cleaning efficiency and the cleaning effect of the annular filter belt are further improved.
Due to the implementation of the technical scheme, compared with the prior art, the invention has the following advantages:
According to the invention, on one hand, by arranging the multi-screw stirring paddles, not only is the sludge concentration efficiency increased, but also the water in the concentration area is conveniently converged and is filtered to the water filtering area after upwelling, so that the sludge concentration efficiency and effect are further improved, the water content of the concentrated sludge is reduced, and the subsequent dehydration difficulty and the dehydration cost of the sludge are also reduced; on the other hand, the length of the arc extrusion channel is extended, the thickness change rate is small, the dehydration rate is effectively improved, and meanwhile, the dehydrated sludge is conveniently discharged under the transmission of the arc extrusion channel formed by the same-direction movement, so that the dehydration efficiency is further improved.
Drawings
The invention is described in further detail below with reference to the attached drawings and specific examples:
FIG. 1 is a schematic front view of a sludge concentrating and dewatering integrated machine according to the present invention;
FIG. 2 is an enlarged view of the structure of the sludge concentration system of the present invention (omitting the sludge outlet passage structure);
FIG. 3 is another schematic cross-sectional view of the sludge concentrating system of FIG. 2 (omitting the sludge passage structure);
FIG. 4 is a schematic cross-sectional view of B-B of FIG. 3;
FIG. 5 is a schematic diagram of the structure of the mud discharging unit of the present invention;
FIG. 6 is an enlarged schematic view of a portion of FIG. 5;
FIG. 7 is a schematic cross-sectional view taken along line A-A of FIG. 6;
FIG. 8 is a right side view of FIG. 7;
FIG. 9 is a schematic rear view of FIG. 1;
FIG. 10 is a schematic cross-sectional view of the structure of FIG. 2;
Wherein: i, a sludge concentration system; ① . A concentration unit; 1. a concentrating cylinder; 1a, a mud inlet channel; 1b, a mud outlet channel; 2. a filter screen cylinder; 3. a stirring mechanism; 30. a stirring shaft; 300. a shaft body; 301. an upper shaft body; 302. a lower shaft body; 31. stirring paddles; 310. a spiral sheet; a. a sheet body; b. a spring plate; c. a flexible wiper blade; k. a mud water passage hole; 32. a stirring motor; 33. a stirring transmission member; 4. a cleaning mechanism; t, cleaning liquid channel; g1, a first cleaning pipeline; g2, a second cleaning pipeline; g3, a drainage pipeline; 5. a receiving hopper; n, a concentration area; l, a water filtering area; ② . A mud discharging unit; c1a, a first side plate; c1b, a second side plate; C1C, a first end plate; c1d, a second end plate; q, discharging mud from the mud cavity; c1, a spring plate; c2, an adjusting component; c20, regulating the monomer; 201. a first adjusting lever; h. a sliding groove; 202. a second adjusting lever; 203. A third adjusting lever; c21, a power device; 210. a dynamic pressure bar; 211. a connecting body; 212. a driving section; c3, a first connecting seat; c4, a second connecting seat; c5, a flexible scraping blade; c6, mud-blocking board; c7, a flexible pressing plate;
II, a sludge dewatering system; j1, extruding a roller; j2, squeeze plates (endless belts); j20, a filter belt body; j21, a conveying roller set; j210, squeeze rolls; j211, a mud discharging transmission roller; j212, transferring the conveying roller; j213, belt tensioning adjustment roller; j3, extruding the base; j4, a negative pressure vacuumizing mechanism; 40. a vacuum water tank; 41. an exhaust pipe; 42. a water pumping pipe; 43. a vacuum pump; j5, a mud outlet guide channel; j6, an inlet mud guide; 60. a mud feeding scraping plate; 61. arc mud guiding board; 610. a rounded corner portion; 611. an inclined portion; j7, an outlet mud guide; 70. a mud discharging joint; 71. a mud discharging scraper; j8, extruding a roller cleaning mechanism; j9, a filter belt cleaning mechanism; 80, 90, cleaning seat; 81, 91, cleaning a roller brush; 82, 92, cleaning fluid lines; 820, 920, liquid inlet tube; 821, 921, drain; q, arc extrusion channel; c1, c2, c6, gears; c3, c7, synchronous chain; c4, tensioning the gear; c5, a power gear; and c8, a transmission gear.
Detailed Description
The present invention will be described in detail with reference to the drawings and the detailed description, so that the above objects, features and advantages of the present invention can be more clearly understood. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the invention, whereby the invention is not limited to the specific embodiments disclosed below.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact through an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.
As shown in fig. 1, the vertical sludge concentration and dehydration integrated machine of the embodiment comprises a sludge concentration system i and a sludge dehydration system ii.
The sludge concentration system I comprises a concentration unit ① and a sludge outlet unit ②.
Specifically, the concentrating unit ① includes a concentrating cylinder 1, a screen cylinder 2, a stirring mechanism 3, and a cleaning mechanism 4.
Referring to fig. 2, the concentration cylinder 1 is cylindrical and extends up and down, a mud inlet channel 1a is formed at the top, a mud outlet channel 1b is formed at the bottom, and the lower end of the mud outlet channel 1b is in butt joint with a mud inlet of the mud dewatering system ii.
The filter screen cylinder 2 is positioned in the concentration cylinder 1 and is cylindrical, wherein the filter screen cylinder 2 is fixed at the upper part of the concentration cylinder 1, which is close to the mud outlet channel 1b, through a base.
A concentration area N is formed inside the filter screen cylinder 2, and a water filtering area L is formed between the outer wall of the filter screen cylinder 2 and the inner wall of the concentration cylinder 1.
In this example, a receiving hopper 5 is further arranged on the upper portion of the filter screen cylinder 2, the caliber of the receiving hopper 5 gradually becomes smaller from top to bottom, and the discharge hole of the mud inlet channel 1a is located on one side right above the receiving hopper 5, that is, mud entering from the mud inlet channel 1a is guided and converged to the concentration area N in a funnel type manner in the mud inlet channel 1a, so that not only can mud be fed rapidly, but also mud splashing can be avoided.
Referring to fig. 3, the stirring mechanism 3 is located in the concentration zone N, and the stirring mechanism 3 includes a stirring shaft 30, a stirring paddle 31, a stirring motor 32, and a stirring transmission 33.
The stirring shaft 30 comprises a shaft body 300, an upper shaft body 301 and a lower shaft body 302 which are formed at the upper end and the lower end of the shaft body 300, the lower shaft body 302 is connected with the bottom of the concentration cylinder 1 and the bottom of the filter screen cylinder 2 in a relative rotation mode through shaft seats, the upper shaft body 301 penetrates out of the tops of the filter screen cylinder 2 and the concentration cylinder 1 to be arranged, and the upper shaft body 301 is connected in a relative rotation mode through bearings.
The stirring paddle 31 comprises a plurality of spiral sheets 310 which are alternately wound on the shaft body 300, wherein the outer side surface of each spiral sheet 310 is attached to the inner wall of the filter screen cylinder 2, a plurality of muddy water channel holes k which are vertically communicated are formed in the inner side of each spiral sheet 310, the muddy water channel holes k are distributed at intervals along the winding direction of the spiral sheet 310, and water in the concentration area N is filtered to the water filtering area L from the filter screen cylinder 2 after moving from the stirring paddle 31 to the filter screen cylinder 2 and from the muddy water channel holes k to the top.
Each spiral piece 310 comprises a piece body a fixedly wound on the shaft body 300, a spring plate b connected to the outer side of the piece body a, and a flexible scraping blade c arranged on the outer side of the spring plate b, wherein the flexible scraping blade c is abutted against and attached to the inner wall of the filter screen cylinder 2 from the outer side. Here, the scraper member composed of the spring plate b and the flexible scraping blade c (nylon scraping blade) can effectively reduce the wear rate and noise of the filter screen cylinder and avoid the blocking of meshes of the filter screen cylinder caused by sludge.
In this example, the mud channel hole k is located at the junction of the plate body a and the shaft body 300. The advantage of setting like this is, ensures that the (mixing) shaft is in relative moist state, not only is favorable to water to assemble and upwards flow, can effectively reduce the slime rate of (mixing) shaft moreover to promote mud concentration water efficiency, reduce the clean degree of difficulty of stirring rake moreover.
Specifically, the slurry channel holes k of the plurality of spiral pieces 310 are vertically spaced and aligned along the length direction of the shaft body 300. The layout not only greatly increases the water yield of mud water concentration, but also is very convenient for water to flow from the inside of the concentration area to the water filtering area (the main reason is that the technical effect of upwelling is formed).
Referring to fig. 4, the front projection of the mud channel holes k of the plurality of spiral pieces 310 on the horizontal plane is a plurality of notches uniformly spaced around the center of the shaft body 300. Therefore, water in the concentration area can be uniformly gathered towards the notch, and meanwhile, the concentrated water can be conveniently discharged to the water filtering area after being upwelled.
At the same time, the top and bottom of the plurality of flights 310 are aligned, respectively. The shaping of convenient stirring rake can provide the concentrated effect of best moreover.
The stirring motor 32 is fixed on the outer side of the concentration barrel 1, and the stirring transmission member 33 adopts conventional sprocket transmission to connect the stirring motor 32 with the upper shaft body 301 in a transmission manner.
The cleaning mechanism 4 moves synchronously with the stirring shaft 30 to clean the periphery of the filter screen cylinder 2. That is, the screen cylinder may be cleaned simultaneously during stirring, or the screen cylinder and the stirring paddle may be cleaned simultaneously after the concentration process.
Specifically, the upper shaft 301 is internally formed with a cleaning liquid passage t, and the cleaning mechanism 4 includes a first cleaning pipe g1 located above the filter screen cylinder 2 and communicating with the cleaning liquid passage t, a second cleaning pipe g2 extending downward from an end of the first cleaning pipe g1 away from the upper shaft 301, and a drain pipe g3 and a water supply member, the first cleaning pipe g1 extending in a radial direction of the filter screen cylinder 2, and the second cleaning pipe g2 extending in an axial direction of the filter screen cylinder 2.
In the embodiment, the cleaning holes are directly formed in the cleaning pipeline or the spray heads are arranged on the cleaning pipeline, and cleaning liquid is sprayed out of the cleaning holes or the spray heads to wash the periphery of the filter screen cylinder.
As shown in connection with fig. 5 and 6, the sludge discharging unit ② includes first and second side plates C1a and C1b at both sides, and first and second end plates C1C and C1d at both ends, wherein the first and second side plates C1a and C1b, the first and second end plates C1C and C1d form a sludge discharging chamber q inclined inwardly from both sides from top to bottom.
The lower end of the first side plate C1a is attached to the extrusion roller J1 of the sludge dewatering system, and the sludge discharging unit ② further comprises a spring plate C1 and a multi-connecting-rod interlocking type adjusting assembly C2, wherein the spring plate C1 bends from outside to inside.
Specifically, the folded edge of the spring plate C1 is aligned with the lower end of the second side plate C1b, and the upper portion of the spring plate C1 is fixed on the outer side of the second side plate C1b, and the lower portion extends downward to form a mud outlet with the lower end of the first side plate C1 a.
That is, the upper portion of the spring plate C1 is fixedly coupled to the outer side of the second side plate C1b by a bolt member, and the inner side wall of the lower portion of the spring plate C1 is aligned with the lower end surface of the second side plate C1b and extends downward. Thus facilitating smooth sludge discharge from the sludge outlet.
The multi-link interlocking type adjusting assembly C2 adjusts the distance between the lower portion of the spring plate C1 and the extrusion roller J1 under the state that the multi-link keeps relative locking so as to adjust the size of the mud outlet.
As shown in fig. 3 and 4, the adjusting assembly C2 includes a plurality of adjusting units C20 spaced apart along the length direction of the sludge outlet, and a power unit C21 for synchronously connecting and synchronously adjusting the plurality of adjusting units C20. Therefore, the outlet width of the mud is consistent, and the mud output can be accurately controlled.
In this example, the outside at spring board C1 lower part is fixed and is equipped with first connecting seat C3, and the outside at second curb plate C1b is fixed and is equipped with second connecting seat C4, and wherein first connecting seat C3 and second connecting seat C4 constitute a set of regulation fixing base, and regulation monomer C20 and regulation fixing base one-to-one set up, and the regulation fixing base is used for every many pole interlocking connection of regulation monomer C20.
Specifically, each adjusting unit C20 includes a first adjusting lever 201, a second adjusting lever 202, and a third adjusting lever 203 that can be locked relatively, wherein the first adjusting lever 201 is rotatably provided from the middle; one end of the second adjusting lever 202 is rotatably connected with one end of the first adjusting lever 201, and the other end of the second adjusting lever 202 is fixed on the first connecting seat C3; the two ends of the third adjusting rod 203 are respectively connected with the second connecting seat C4 and the rotation center of the first adjusting rod 201 in a rotating way, and the power device C21 acts on the other end of each first adjusting rod 201 and is used for driving the plurality of first adjusting rods 201 to rotate around the turning points synchronously for adjustment. The arrangement of the three rods is convenient for quantitative adjustment of the width of the mud outlet.
Therefore, the turning points at both ends of the third adjustment lever 203 and the turning point of the second adjustment lever 202 form a closed triangle. The structure is stable, the acting force provided is quite uniform, the compactness of the discharged mud is ensured to be the same, and the control of the discharged mud amount is facilitated.
The power device C21 comprises a power pressing rod 210 extending along the length direction of the mud outlet, a connecting body 211 integrally arranged with the power pressing rod 210 and respectively movably connected with the end part of each first adjusting rod 201 far away from the spring plate C1, and a driving part 212 for driving the power pressing rod 210 to lift up and down, wherein the connecting body 211 toggles the plurality of first adjusting rods 201 to rotate around the turning points in the lifting movement of the power pressing rod. The lifting motion of a power compression bar is adopted, so that a plurality of first adjusting rods synchronously rotate.
A sliding groove h extending in the length direction of the shaft is formed at an end of the first adjusting lever 201 remote from the spring plate C1, and the link 211 moves in the sliding groove h to adjust the angle of the first adjusting lever 201. The first adjusting rod is turned around the turning point by the linear motion of the connecting body.
Specifically, the driving portion 212 may drive the power compression bar 210 to lift by using the up-and-down motion of the screw rod.
In addition, the lower part of the spring plate C1 is also provided with a flexible scraping blade C5, and the flexible scraping blade C5 is abutted against the inner wall of the sludge inlet channel of the sludge dewatering system. The mud scraping plate is prevented from wearing the inner wall of the mud entering channel, and particularly the inner wall of the mud entering channel in motion is avoided.
The flexible blade C5 is fixed to the outer side of the lower portion of the spring plate C1. Avoiding the obstruction of sludge output caused by the built-in.
The lower end of the first side plate C1a is located above the lower end of the second side plate C1b, a mud blocking plate C6 and a flexible pressing plate C7 are further arranged at the lower end of the first side plate C1a, the first side plate C1a is in transitional connection with the outer wall of the extrusion roller J1 through the mud blocking plate C6, and the flexible pressing plate C7 is pressed on the outer wall of the extrusion roller J1. Therefore, the damping plate can prevent the sludge from leaking from the sludge outlet, and meanwhile, the phenomenon that the rotation speed of the extrusion roller is influenced due to overlarge extrusion force of the sludge on the extrusion roller is avoided.
As shown in fig. 9 and 10, the sludge dewatering system ii includes a squeeze drum J1 capable of rotating around its own axis, and a squeeze plate J2, wherein the squeeze plate J2 is formed of an annular filter belt, and an arc-shaped squeeze channel Q is formed between the outer wall of the squeeze drum J1 and the annular filter belt.
Specifically, the thickness of the arc extrusion channel Q formed at the mud inlet and the mud outlet is h1 and h2 respectively, wherein h2 is smaller than h1, and the thickness of the arc extrusion channel from the mud inlet to the mud outlet is gradually reduced.
The length of the arc-shaped extrusion channel Q is L, the circumference of the extrusion roller J1 is C, C=3/4L, wherein the mud inlet is positioned below the mud outlet, and the arc-shaped extrusion channel Q at the mud inlet extends up and down and is tangent to the circumference of the extrusion roller J1. Therefore, not only can enough extrusion space be ensured, but also the thickness change rate of the formed space is small, and the dehydration rate is effectively improved; meanwhile, the position distribution of the sludge inlet is more beneficial to the concentrated sludge to enter the arc-shaped extrusion channel Q, so that the dehydration efficiency is improved.
The surface of the pressing roller J1 is formed with water filtering holes, and water generated by pressing can be filtered out from the water filtering holes.
The endless belt comprises a belt body J20, a transfer roll set J21 formed in the belt body J20, wherein the belt body J20 may be a conventional belt cloth.
The conveying roller set 21 comprises a plurality of squeeze rollers J210, a mud discharging conveying roller J211 and a transferring conveying roller J212 which are distributed around the center of the squeeze roller J1 at intervals, and the filter belt body J20 is sleeved on the squeeze rollers J210, the mud discharging conveying roller J211 and the transferring conveying roller J212 and forms a closed ring shape. In this way, an effective support of the arc-shaped extrusion channel is formed by the extrusion roller; taking out the extruded sludge through a sludge outlet transmission roller; the annular movement of the annular filter belt is realized through the transfer transmission of the transfer transmission roller.
In this example, the belt tension adjusting roller J213 is further included in the conveying roller set J21, wherein the tension of the belt body J20 is adjusted by the adjustment of the belt tension adjusting roller J213, so that the belt body J20 forming the arc-shaped extrusion channel Q provides the best extrusion effect.
The squeeze roller J210 is movably disposed along the radial direction of the squeeze roller J1. Therefore, the thickness of the arc-shaped extrusion channel is adjusted according to actual needs so as to meet extrusion needs.
The mud outlet transmission roller J211 is in synchronous transmission connection with the extrusion roller J1, the extrusion roller J1 and the filter belt body J20 synchronously move, and the movement direction is consistent, so that the mud is transmitted from the mud inlet to the mud outlet. Therefore, the same power source can be shared, and the synchronous movement control of the extrusion roller and the filter belt body is facilitated.
Specifically, a gear c1 is formed at the end of the extrusion roller J1, a gear c2 is also arranged at the end of the mud delivery roller J211, then the two gears c1 and c2 are synchronously connected by adopting a synchronous chain c3, and meanwhile, the synchronous chain c3 is in transmission connection with a power gear c5 driven by a motor through a tensioning gear c4, so that the extrusion roller J1 and the filter belt body J20 synchronously move under the output of the power gear c 5.
Meanwhile, the sludge discharge transmission roller J211 is arranged flush with the extrusion roller J210 at the uppermost part, and the sludge dewatering system also comprises an extrusion seat J3 which is internally formed with a closed extrusion cavity formed by the filter belt body J20 and the extrusion roller J1; and the negative pressure vacuumizing mechanism J4 is communicated with the extrusion cavity of the extrusion seat J3, a mud outlet guide channel J5 is formed between the filter belt body J20 from the mud outlet to the mud outlet transmission roller J211 and the extrusion seat J3, the negative pressure vacuumizing mechanism J4 keeps negative pressure formed in the extrusion cavity, and water extruded from extrusion is pumped out of the extrusion cavity. Through negative pressure pumping, not only conveniently filter out the collection of muddy water by the filter belt body, but also can further promote extrusion dehydration rate (avoid the filtration pore to appear blocking, can suck in case there is water simultaneously).
Specifically, the negative pressure vacuumizing mechanism J4 includes a vacuum water tank 40, an air suction pipe 41 and a water suction pipe 42 which are communicated with the vacuum water tank 40, and a vacuum pump 43 which is communicated with the air suction pipe 41, wherein the water suction pipe 42 is connected to the squeezing seat J3 and is communicated with the squeezing cavity.
The filter belt body forming the mud outlet guide channel J5 is horizontally arranged, and the mud dewatering system further comprises an inlet mud guide piece J6 and an outlet mud guide piece J7 which are respectively arranged at the inlet and the outlet of the mud outlet guide channel J5.
Specifically, the inlet mud guide member J6 includes a mud entering scraper 60 extending along the length direction of the extrusion roller J1 and having a lower portion abutting against the surface of the extrusion roller J1, and an arc mud guide plate 61 disposed at the top of the mud entering scraper 60 and arc-shaped transiting to the top of the extrusion seat J3. The guiding and mud entering scraping plate formed at the inlet of the mud outlet guiding channel is convenient for mud to enter the mud outlet guiding channel, and the probability of mud adhesion on the surface of the extrusion roller is reduced under the scraping of the mud scraping plate.
In this example, the arc mud guiding plate 61 and the extrusion seat J3 are integrally formed, and the arc mud guiding plate 61 includes a rounded corner portion 610 and an inclined portion 611 inclined inwards, wherein the mud feeding scraper 60 is fixed on the outer side of the inclined portion 611, the lower end portion of the inclined portion 611 forms a guiding slope, and the scraped mud is guided into a channel formed by the rounded corner portion 610 along the slope.
The outlet mud guide J7 includes a mud discharging joint 70 which is butted with an arc-shaped passage formed at the outlet mud conveying roller J211 and extends in a tangential direction, and a mud discharging scraper 71 which is provided in the mud discharging joint 70 and abuts against the surface of the filter belt body. The mud discharging connector and the mud discharging scraping plate are formed at the outlet of the mud discharging guide channel, so that the mud is convenient to throw out from the mud discharging guide channel, and meanwhile, the probability that the mud is adhered to the annular filter surface is reduced under the scraping of the mud discharging scraping plate.
In this example, a sludge discharge passage is formed in the sludge discharge joint 70, and an angle formed by the sludge discharge passage and the vertical direction is 30 °, and the sludge discharge scraper 71 forms the bottom wall of the sludge discharge passage. The mud scraping effect formed at the moment is good, the centrifugal throwing out of the mud is facilitated, and the mud yield is improved.
The sludge dewatering system further comprises an extrusion roller cleaning mechanism J8 for cleaning the surface of the extrusion roller J1 and a filter belt cleaning mechanism J9 for cleaning the front surface and the back surface of the annular filter belt respectively, and under the arrangement of the cleaning mechanism, the blockage of filter holes of the filter belt and the filter holes of the annular filter belt is avoided, so that the sludge extrusion dewatering rate is improved.
In this example, the squeeze roller cleaning mechanism J8 is located between the mud inlet and the mud outlet, and the belt cleaning mechanism J9 is located on both sides of the path of movement of the endless belt.
Specifically, the squeeze roller cleaning mechanism J8 includes a cleaning seat 80, a cleaning roller brush 81, and a cleaning liquid pipe 82, wherein the cleaning liquid pipe 82 includes a liquid inlet pipe 820 communicating with a water outlet of the sludge concentration vessel, and a water outlet pipe 821 communicating with the cleaning seat 80.
In this example, the cleaning seat 80 and the outer wall surface of the extrusion roller J1 form a relatively closed cavity, wherein the upper portion of the cavity is communicated with the water outlet of the sludge concentration cylinder through the liquid inlet pipe 820, the cleaning rolling brush 81 extends along the length direction of the extrusion roller J1 and brushes the surface of the extrusion roller J1 around the center line of the length direction to brush or reversely rotate, and the brushed muddy water is discharged from the drain pipe 821, so that the surface of the extrusion roller J1 is cleaned in operation by utilizing the concentrated and separated water, and the water filtering holes on the surface of the extrusion roller are not easy to be blocked.
The filter belt cleaning mechanisms J9 are provided with two groups and are correspondingly arranged on the front surface and the back surface of the filter belt body J20.
In this example, taking the front side as an example, the belt cleaning mechanism J9 includes a cleaning seat 90, a cleaning roller brush 91, and a cleaning liquid pipeline 92, where the cleaning liquid pipeline 92 includes a liquid inlet pipe 920 communicating with the water outlet of the sludge concentration cylinder, and a drain pipe 921 communicating with the cleaning seat 90.
Specifically, a water receiving cavity is formed in the cleaning seat 90, and the cleaning rolling brush 91 is rotatably disposed in the water receiving cavity, and the water outlet of the concentration barrel is respectively communicated with the two water receiving cavities on the front side and the back side of the filter belt body J20 through branches.
In this example, the cleaning roller brush 91 corresponding to the front and the back rotates in opposite directions, specifically, two gears c6 are meshed to perform opposite rotation, and meanwhile, a synchronous chain c7 is in transmission connection with a transmission gear c8 of the cleaning roller brush 81, so that synchronous cleaning of the extrusion roller J1 and the filter belt body J20 is ensured, and a clean arc-shaped extrusion channel Q is directly formed after cleaning of the outer wall of the extrusion roller and the annular filter belt.
In addition, the cleaning roller brushes 91 on the front and rear surfaces are vertically staggered, so that cleaning of the belt body J20 can be performed more effectively.
In summary, the implementation procedure of this embodiment is as follows:
S1, sludge enters from a sludge inlet channel 1a, the sludge is conveyed into a concentration area N through guiding convergence of a receiving hopper 5, the sludge is concentrated gradually in the rotation of a stirring paddle 31, the muddy water is filtered from a filter screen cylinder 2 to a water filtering area L, the muddy water in the concentration area is converged towards the muddy water channel hole k under the design of a muddy water channel hole k formed by a spiral sheet 310, the muddy water in the concentration area is filtered from the filter screen cylinder 2 to the water filtering area L after upwards surging, the water in the concentration area N is filtered to the water filtering area L, the sludge is conveyed to a discharging channel 1b, the concentrated sludge enters a sludge outlet cavity q below, the first adjusting rod 201 is turned upwards or downwards around a middle turning point in the up-down lifting process of a power pressing rod 210, at this moment, the lower part of a spring plate C1 is relatively pressed against the drum J1 by three turning points forming a closed triangle, the width of a sludge outlet is adjusted consistently, and the concentrated sludge is discharged from the sludge outlet;
S2, sludge discharged from a sludge outlet channel of the sludge concentration device enters a sludge inlet of an arc-shaped extrusion channel Q formed by an extrusion roller J1 and an annular filter belt body J20, is conveyed from the sludge inlet to the sludge outlet under the motion extrusion of the extrusion roller J1 and the filter belt body J20, is pumped out and filtered to the extrusion roller J1 to be collected in the conveying process, enters a sludge outlet guide channel J5 after extrusion, is discharged from the sludge outlet channel under the motion of the filter belt body J20, completes dehydration of the sludge, and simultaneously flows concentrated water to an extrusion roller cleaning mechanism J8 and a filter belt cleaning mechanism J9 from a water filtering area L through liquid inlet pipes 820 and 920 respectively, so that cleaning of the extrusion roller J1 and the filter belt body J20 is completed.
Therefore, the present embodiment has the following advantages:
The sludge concentration efficiency is improved through the arrangement of the multi-screw stirring paddles, so that the sludge is convenient to filter out and convey from the sludge inlet channel to the sludge outlet channel; under the arrangement of the mud water passage holes, water in the concentration area is conveniently gathered and is upwards gushed and filtered to the water filtering area, so that the efficiency and the effect of sludge concentration are further improved, the water content of the concentrated sludge is reduced, and the subsequent dehydration difficulty and the subsequent dehydration cost of the sludge are also reduced; the scraper component formed by the spring plate and the flexible scraping blade not only can effectively reduce the wear rate and noise of the filter screen cylinder, but also can avoid the mesh blockage of the filter screen cylinder caused by sludge; the orthographic projection of the muddy water channel holes on the spiral sheets on the horizontal plane is a plurality of notches uniformly distributed at intervals around the center of the shaft body, so that water in the concentration area can be converged uniformly towards the notches, the concentrated water can be discharged to the water filtering area after being gushed up conveniently, and meanwhile, the top parts and the bottom parts of the spiral sheets are respectively aligned, so that the stirring paddles can be conveniently formed, and the optimal concentration effect can be provided; the cleaning mechanism and the stirring shaft synchronously move, so that the filter screen cylinder can be synchronously or regularly cleaned on the premise of not influencing concentration, the blocking of filter screen holes is avoided, and the water filtering efficiency and effect are improved; the funnel type rapid guiding and converging in the mud inlet channel is designed to be capable of rapidly feeding mud and avoiding mud splashing; the width of the mud outlet is relatively balanced and adjusted under the interlocking of the multiple connecting rods, so that the mud outlet amount can be conveniently and accurately controlled, and meanwhile, the compaction force is relatively uniform; the inner wall of the mud outlet is relatively flat and has no overturning seam, so that smooth mud discharge of the mud is facilitated, and meanwhile, the structure is simple and the implementation is convenient; the damping plate is used for preventing the sludge from leaking out of the sludge outlet, and meanwhile, the phenomenon that the rotation speed of the extrusion roller is influenced due to overlarge extrusion force of the sludge on the extrusion roller is avoided; the setting of flexible doctor-bar and flexible clamp plate avoids the slime that movable mud passageway inner wall caused, avoids simultaneously going into the wearing and tearing of mud passageway inner wall.
Secondly, the length of the arc extrusion channel is extended, the thickness change rate is small, and the dehydration rate is effectively improved; the sludge after dehydration is conveniently discharged under the transmission of an arc-shaped extrusion channel formed by the same-direction movement, so that the dehydration efficiency is further improved; on the premise of negative pressure pumping, sludge extrusion is carried out, so that the dehydration rate is further improved; under the arrangement of the mud inlet scraping plate and the mud outlet scraping plate, the sludge on the extrusion roller and the filter belt body is scraped, and simultaneously, the synchronous cleaning rolling brush respectively cleans the extrusion roller and the filter belt body, so that the water filtering holes of the formed arc extrusion channel are in an unblocked state, and the dehydration is convenient; the water formed by the sludge concentration device is used for cleaning the extrusion roller and the filter belt body, so that the cleaning is facilitated in the opposite movement of the cleaning roller brush, and the movement of the extrusion roller and the annular filter belt is facilitated, especially in the opposite movement of the front and back surfaces of the annular filter belt in a staggered manner, and the cleaning efficiency and the cleaning effect of the annular filter belt are further improved; the mud outlet guide channel is arranged, so that the discharge of mud is facilitated, and the mud rate of the surfaces of the extrusion roller and the filter belt body is greatly reduced under the assistance of the inlet mud guide piece and the outlet mud guide piece of the inlet and the outlet, so that the subsequent cleaning is facilitated; the thickness of the arc extrusion channel can be adjusted at any time according to extrusion requirements by arranging the extrusion rollers which can be movably adjusted along the radial direction of the extrusion roller; the extrusion roller and the annular filter belt synchronously move and share one drive, so that the control of mud discharge is facilitated, and the cost is saved; meanwhile, the cleaning rolling brush of the extrusion roller and the filter belt body synchronously moves and shares one drive, so that the cleaning implementation is convenient, and the cost is saved.
(III), concentrated water can be directly shunted into the cleaning seat, and the rolling brushes which move in the same direction as the extrusion roller and move in opposite directions with the annular filter belt respectively brush the extrusion roller and the annular filter belt, and then muddy water is collected, so that external water is not needed to be added for cleaning, and the self-cleaning of the cleaning brush can be also implemented in the cleaning process.
The present invention has been described in detail with the purpose of enabling those skilled in the art to understand the contents of the present invention and to implement the same, but not to limit the scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be included in the scope of the present invention.
Claims (14)
1. The vertical sludge concentration and dehydration integrated machine comprises a sludge concentration system and a sludge dehydration system, wherein the sludge concentration system comprises a concentration unit and a sludge outlet unit, the concentration unit comprises a concentration cylinder, a filter screen cylinder and a stirring mechanism, a water filtering area is formed between the concentration cylinder and the filter screen cylinder, the stirring mechanism is positioned in the filter screen cylinder and forms a concentration area, and the stirring mechanism comprises a stirring shaft and stirring paddles; the sludge dewatering system comprises an extrusion roller and an extrusion plate which can rotate around the axis of the extrusion roller, wherein an arc extrusion channel is formed between the outer wall of the extrusion roller and the extrusion plate, the arc extrusion channel is provided with a sludge inlet and a sludge outlet, the length of the arc extrusion channel is L, and the circumference of the extrusion roller is C, and the sludge dewatering system is characterized in that: the concentrating cylinder is cylindrical and extends up and down, the stirring paddle comprises a plurality of spiral sheets which are alternately wound on the stirring shaft, the outer side face of each spiral sheet is attached to the inner wall of the filter screen cylinder, the inner side of each spiral sheet is provided with a mud water channel hole which penetrates up and down, the filter screen cylinder is cylindrical, and the mud water channel holes extend along the winding direction of the spiral sheets; or a plurality of muddy water passage holes are formed, the muddy water passage holes are distributed at intervals along the winding direction of the spiral sheet, and the water in the concentration area is filtered to the water filtering area from the filter screen cylinder after moving from the stirring paddle to the filter screen cylinder and from the muddy water passage holes to the top; 1/2C is less than or equal to L is less than or equal to 5/6C, the extrusion plate is composed of an annular filter belt, the thickness formed by the arc extrusion channel at the mud inlet and the mud outlet is respectively h1 and h2, wherein h2 is less than h1, the thickness of the arc extrusion channel from the mud inlet to the mud outlet is gradually reduced, the mud dewatering system further comprises a mud outlet guide channel arranged at the mud outlet, and the annular filter belt is consistent with the movement direction of the extrusion roller and transmits mud from the mud inlet to the mud outlet guide channel.
2. The vertical sludge concentrating and dewatering integrated machine according to claim 1, wherein: the top and the bottom of the spiral sheets are respectively aligned; the muddy water passage hole is positioned at the joint of the spiral sheet and the stirring shaft.
3. The vertical sludge concentrating and dewatering integrated machine according to claim 1, wherein: the muddy water passage holes are formed in a plurality of spiral sheets, and the muddy water passage holes are vertically spaced and aligned along the length direction of the stirring shaft.
4. The vertical sludge concentrating and dewatering integrated machine according to claim 3, wherein: orthographic projection of the muddy water passage holes on the spiral sheets on a horizontal plane is a plurality of notches uniformly distributed at intervals around the center of the stirring shaft.
5. The vertical sludge concentrating and dewatering integrated machine according to claim 1, wherein: the concentration unit is still including setting up drainage district and can be right filter screen cylinder periphery carries out abluent wiper mechanism, the (mixing) shaft include the axle body, form in the upper and lower axis body of axle body upper and lower tip, lower axis body pass through the axle bed with concentrate the section of thick bamboo with the relative rotation in bottom of filter screen cylinder is connected, go up the axis body with concentrate the section of thick bamboo top wears out the setting, wherein go up the inside washing liquid passageway that forms of axle, wiper mechanism including be located filter screen cylinder top and with the first wash pipeline of washing liquid passageway intercommunication, from first wash pipeline keep away from go up the second wash pipeline of axis body tip downwardly extending and drainage pipe and water supply unit, first wash pipeline along the radial extension of filter screen cylinder, the second wash pipeline along the axial extension of filter screen cylinder.
6. The vertical sludge concentrating and dewatering integrated machine according to claim 1, wherein: the utility model provides a mud dewatering system, including a concentration section of thick bamboo, a concentration section of thick bamboo top is equipped with into mud passageway, the bottom is equipped with out mud passageway, go out mud unit including first curb plate and the second curb plate that are located both sides, first end plate and the second end plate that is located both ends, wherein first curb plate and second curb plate first end plate and second end plate constitute a top-down and from both sides inward sloping out mud chamber, go out mud chamber's upper portion with go out mud passageway is linked together, the lower tip of first curb plate is laminated with the extrusion cylinder of mud dewatering system, go out mud unit still includes from outside-in buckling spring plate, the multi-link interlocking formula adjusting part, wherein the hem of spring plate with the lower extreme face of second curb plate is in, just spring plate upper portion is fixed the inboard or the outside of second curb plate, lower part downwardly extending and with the lower tip of first curb plate forms out mud mouth, multi-link interlocking formula adjusting part is adjusted the spring plate lower part is relative to the distance of extrusion cylinder under the multi-link keeps relative locking state in order to adjust out mud mouth's size.
7. The vertical sludge concentrating and dewatering integrated machine according to claim 6, wherein: the adjusting assembly comprises a plurality of adjusting monomers and a power device, wherein the adjusting monomers are distributed at intervals along the length direction of the mud outlet, the power device is used for synchronously connecting and adjusting the adjusting monomers, each adjusting monomer comprises a first adjusting rod, a second adjusting rod and a third adjusting rod which can be locked relatively, and the first adjusting rod is rotatably arranged from the middle part; one end part of the second adjusting rod is rotationally connected with one end part of the first adjusting rod, and the other end part of the second adjusting rod is fixed on the outer side of the lower part of the spring plate; the two ends of the third adjusting rod are respectively and rotatably connected with the second side plate and the rotating centers of the first adjusting rods, and the power device acts on the other end of each first adjusting rod and is used for driving the first adjusting rods to synchronously rotate around the turning points for adjustment.
8. The vertical sludge concentrating and dewatering integrated machine according to claim 7, wherein: the outer side of the lower part of the spring plate is fixedly provided with a first connecting seat, the outer side of the second side plate is fixedly provided with a second connecting seat, the second adjusting rod is fixedly connected with the first connecting seat from the end part, the third adjusting rod is rotatably connected with the second connecting seat from the end part, and the turning points of the two end parts of the third adjusting rod and the turning points of the second adjusting rod form a closed triangle.
9. The vertical sludge concentrating and dewatering integrated machine according to claim 8, wherein: the power device comprises a power pressing rod extending along the length direction of the mud outlet, a connecting body integrally arranged with the power pressing rod and movably connected with the end part of each first adjusting rod far away from the spring plate, and a driving part for driving the power pressing rod to lift up and down, wherein the connecting body stirs a plurality of first adjusting rods to rotate around a turning point in the lifting motion of the power pressing rod.
10. The vertical sludge concentrating and dewatering integrated machine according to claim 1, wherein: the annular filter belt comprises a filter belt body and a transmission roller set formed in the filter belt body, wherein the transmission roller set comprises a mud outlet transmission roller, a transfer transmission roller and a plurality of extrusion rollers which are distributed around the center of the extrusion roller at intervals, and the filter belt body is sleeved on the extrusion rollers, the mud outlet transmission roller and the transfer transmission roller and forms a closed annular shape.
11. The vertical sludge concentrating and dewatering integrated machine according to claim 10, wherein: the mud discharging transmission roller is in synchronous transmission connection with the extrusion roller, and the extrusion roller and the filter belt body synchronously move.
12. The vertical sludge concentrating and dewatering integrated machine according to claim 10, wherein: the sludge dewatering system further comprises an extrusion seat, wherein a closed extrusion cavity is formed in the extrusion seat and is formed with the filter belt body and the extrusion roller; and the negative pressure vacuumizing mechanism is communicated with the extrusion cavity of the extrusion seat, a mud outlet guide channel is formed between the filter belt body and the extrusion seat from the mud outlet to the mud outlet transmission roller, the negative pressure vacuumizing mechanism keeps negative pressure formed in the extrusion cavity, and water extruded and separated is pumped out of the extrusion cavity.
13. The vertical sludge concentrating and dewatering integrated machine according to claim 1, wherein: the sludge dewatering system comprises an extrusion roller, a filter belt cleaning mechanism, a sludge dewatering system and a sludge dewatering system, wherein the surface of the extrusion roller is provided with water filtering holes, the sludge dewatering system further comprises the extrusion roller cleaning mechanism which is used for cleaning the surface of the extrusion roller, and the filter belt cleaning mechanism which is used for cleaning the front surface and the back surface of the annular filter belt, wherein the extrusion roller cleaning mechanism and the filter belt cleaning mechanism are used for synchronously cleaning the extrusion roller and the annular filter belt.
14. The vertical sludge concentrating and dewatering integrated machine according to claim 13, wherein: the extrusion roller cleaning mechanism is positioned between the mud inlet and the mud outlet, the filter belt cleaning mechanism is positioned at two sides of the moving path of the annular filter belt, and both the extrusion roller cleaning mechanism and the filter belt cleaning mechanism comprise cleaning seats forming cleaning cavities, cleaning roller brushes positioned in the cleaning cavities and cleaning liquid pipelines, wherein the cleaning liquid pipelines comprise liquid inlet pipes communicated with a water outlet of a sludge concentration cylinder and drain pipes communicated with the cleaning seats; and the cleaning rolling brush of the extrusion roller cleaning mechanism and the extrusion roller rotate in opposite directions, and the cleaning rolling brushes of the filter belt cleaning mechanisms positioned on two sides of the annular filter belt are staggered up and down and synchronously rotate in opposite directions.
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| CN101993183B (en) * | 2009-08-14 | 2012-12-26 | 桑德国际有限公司 | Sludge dewatering device |
| KR100958664B1 (en) * | 2010-02-26 | 2010-05-20 | (주)오에치케이 | High efficiency apparatus for dehydrating sludge connected by thickener |
| CN106365411B (en) * | 2016-11-28 | 2023-07-21 | 浙江科力尔环保设备股份有限公司 | Sludge concentration and dehydration all-in-one |
| CN110422983B (en) * | 2019-08-14 | 2024-07-30 | 浙江科力尔环保设备股份有限公司 | Vertical sludge dewatering machine |
| CN110746085A (en) * | 2019-09-11 | 2020-02-04 | 杭州国泰环保科技股份有限公司 | Sludge concentration kettle and use method thereof |
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