CN114772895A - Roller extrusion type dehydrator - Google Patents
Roller extrusion type dehydrator Download PDFInfo
- Publication number
- CN114772895A CN114772895A CN202210343377.1A CN202210343377A CN114772895A CN 114772895 A CN114772895 A CN 114772895A CN 202210343377 A CN202210343377 A CN 202210343377A CN 114772895 A CN114772895 A CN 114772895A
- Authority
- CN
- China
- Prior art keywords
- extrusion
- mud
- roller
- filter belt
- cleaning
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000001125 extrusion Methods 0.000 title claims abstract description 142
- 239000010802 sludge Substances 0.000 claims abstract description 69
- 230000005540 biological transmission Effects 0.000 claims abstract description 35
- 230000033001 locomotion Effects 0.000 claims abstract description 17
- 238000004140 cleaning Methods 0.000 claims description 89
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 42
- 238000007599 discharging Methods 0.000 claims description 38
- 230000007246 mechanism Effects 0.000 claims description 38
- 238000001914 filtration Methods 0.000 claims description 14
- 239000007788 liquid Substances 0.000 claims description 13
- 230000001360 synchronised effect Effects 0.000 claims description 8
- 238000005096 rolling process Methods 0.000 claims description 6
- 230000007704 transition Effects 0.000 claims description 3
- 238000009826 distribution Methods 0.000 claims description 2
- 210000001503 joint Anatomy 0.000 claims 1
- 230000018044 dehydration Effects 0.000 abstract description 17
- 238000006297 dehydration reaction Methods 0.000 abstract description 17
- 230000008859 change Effects 0.000 abstract description 5
- 230000000694 effects Effects 0.000 description 6
- 238000003825 pressing Methods 0.000 description 5
- 238000005086 pumping Methods 0.000 description 5
- 238000007790 scraping Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
Images
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 roller extrusion type dehydrator, which comprises an extrusion roller and an extrusion plate, wherein an arc-shaped extrusion channel is formed between the outer wall of the extrusion roller and the extrusion plate, the length of the arc-shaped extrusion channel is L, the perimeter of the extrusion roller is C, particularly, L is not less than 1/2C and not more than 5/6C, the extrusion plate is composed of an annular filter belt, the thicknesses formed by the arc-shaped extrusion channel at a sludge inlet and a sludge outlet are h1 and h2 respectively, wherein h2 is less than h1, the thickness of the arc-shaped extrusion channel from the sludge inlet to the sludge outlet is gradually reduced, the dehydrator also comprises a sludge outlet guide channel arranged at the sludge outlet, and the annular filter belt is consistent with the movement direction of the extrusion roller and transmits sludge from the sludge inlet to the sludge outlet guide channel. On one hand, the invention effectively improves the dehydration rate by extending the length of the arc-shaped extrusion channel and having small thickness change rate; on the other hand, under the transmission of the arc-shaped extrusion channel formed by the equidirectional movement, the dewatered sludge is conveniently discharged, and the dewatering efficiency is further improved.
Description
Technical Field
The invention belongs to the field of sludge treatment equipment, and particularly relates to a roller extrusion type dehydrator.
Background
With the development of social economy and the acceleration of urbanization process, the number of urban sewage treatment plants and the sludge generated therewith is rapidly increased, and sludge treatment equipment is continuously updated to meet the requirement of sludge treatment. In the field, the sludge treatment apparatus generally includes a concentration unit and a dehydrator, which are independently disposed, and when sludge treatment is performed, the concentration unit is used to concentrate relatively thin sludge, and the sludge with reduced water content after concentration enters the dehydrator for dehydration.
At present, the hydroextractor that adopts is by two kinds more of electric osmosis formula and cylinder extrusion formula, however to the cylinder extrusion formula, its mainly forms the extrusion passageway through cylinder and corresponding stripper plate, carries out the extrusion dehydration again in the mud entering extrusion passageway after the concentration.
However, the extrusion channel has a short forming length, and a change rate of the extrusion channel is very large to obtain a good dewatering efficiency and effect, so that the following technical defects are present:
1. the efficiency of discharging sludge from the extrusion channel is very low, and the dehydration rate is influenced because the extrusion channel is too short;
2. the stresses that develop in the rollers and the pressing plates are very high and therefore easily cause deformations affecting the rate of thickness variation of the pressing channel and consequently the dewatering.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide an improved roller extrusion type dehydrator.
In order to solve the technical problems, the invention adopts the following technical scheme:
the utility model provides a cylinder extrusion hydroextractor, it is including can be around self axis pivoted squeeze roll, the stripper plate, wherein form arc extrusion passageway between squeeze roll outer wall and the stripper plate, arc extrusion passageway has into mud mouth and a mud mouth, arc extrusion passageway length is L, the perimeter of stripper roll is C, especially, 1/2C is less than or equal to L is less than or equal to 5/6C, the stripper plate comprises annular filtering belt, the thickness that arc extrusion passageway formed at into mud mouth and mud mouth is h1 and h2 respectively, wherein h2 < h1, and diminish gradually from the mud mouth to the arc extrusion passageway thickness of mud mouth, the hydroextractor still includes the mud guide way of play mud mouth department that sets up, annular filtering belt is unanimous with the direction of motion of squeeze roll and transmits mud from the mud mouth to mud guide way.
Preferably, the annular filter belt comprises a filter belt body and a transmission roller group formed in the filter belt body, wherein the transmission roller group 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 ring. So, form the effective support of arc extrusion passageway through the squeeze roll, through going out mud transmission roller and taking out mud guide way with the mud after the extrusion, through the transfer transmission of transfer transmission roller, realize the looping movement in annular filtering area.
Further, the extrusion roller can be movably arranged along the radial direction of the extrusion roller. Therefore, the thickness of the arc-shaped extrusion channel is adjusted according to actual requirements so as to meet the extrusion requirements.
According to a specific implementation and preferred aspect of the invention, the mud discharging conveying roller is in synchronous transmission connection with the squeezing roller, and the squeezing roller and the filter belt body move synchronously. Therefore, the same power source can be shared, and the synchronous movement of the roller and the filter belt body can be controlled conveniently.
According to another embodiment and preferred aspect of the present invention, the dewatering machine further comprises a squeezing seat formed therein to form a closed squeezing chamber together with the filter belt body and the squeezing roller; and the negative pressure vacuumizing mechanism is communicated with the extrusion cavity of the extrusion seat, a mud discharging guide channel is formed between the filter belt body between the mud outlet and the mud discharging conveying roller and the extrusion seat, negative pressure is formed in the extrusion cavity, and extruded water is pumped out of the extrusion cavity. Draw water through the negative pressure, not only make things convenient for the collection that filters out muddy water from the filter belt body, can further promote the extrusion dehydration rate moreover (avoid the filtration pore to appear blockking up, in case there is water can the suction simultaneously).
According to another specific implementation and preferred aspect of the invention, the sludge delivery roll is flush with the uppermost squeeze roll, the filter belt body forming the sludge guide channel is horizontally arranged, the dewatering machine further comprises an inlet sludge guide member and an outlet sludge guide member which are respectively arranged at the inlet and the outlet of the sludge guide channel, wherein the inlet sludge guide member comprises a sludge inlet scraper which extends along the length direction of the squeeze roller and the lower part of which is abutted against the surface of the squeeze roller, and an arc-shaped sludge guide plate which is arranged at the top of the sludge inlet scraper and is in arc transition to the top of the squeezing seat; the outlet mud guide piece comprises a mud discharging joint and a mud discharging scraper, wherein the mud discharging joint is butted with an arc-shaped channel formed at the mud discharging conveying roller and extends along the tangential direction, and the mud discharging scraper is arranged in the mud discharging joint and is abutted against the surface of the filter belt body. The guide and mud inlet scraper plates are formed at the inlet of the mud outlet guide channel, so that the mud can conveniently enter the mud outlet guide channel, and the probability that the mud is bonded on the surface of the extrusion roller is reduced under the scraping of the mud scraper plates; mud that unloads that export formation of play mud guide way connects and goes out the mud scraper blade, and the mud of being convenient for throws away in a mud guide way, scrapes at a mud scraper blade simultaneously and establishes down, reduces mud and bonds the probability on annular filter surface.
Preferably, a mud discharging channel is formed in the mud discharging joint, the angle formed by the mud discharging channel and the vertical direction is 30-60 degrees, and the mud discharging scraper plate forms the bottom wall of the mud discharging channel. The formed sludge scraping effect is good, the sludge is convenient to centrifugally throw away, and the sludge yield is improved.
Preferably, the mud outlet is positioned above the mud inlet, and the mud inlet extends up and down to be tangential to the circumferential direction of the extrusion drum. Thus being beneficial to the concentrated sludge to enter the arc-shaped extrusion channel and increasing the dehydration efficiency.
In addition, the surface of the extrusion roller is provided with water filtering holes, the dehydrator also comprises a roller cleaning mechanism for respectively cleaning the surface of the extrusion roller and a filter belt cleaning mechanism for respectively cleaning the front surface and the back surface of the annular filter belt, and the roller cleaning mechanism and the filter belt cleaning mechanism synchronously clean the extrusion roller and the annular filter belt. The squeezing roller collects the internally filtered mud water from the water filtering holes, so that the dehydration rate is improved; simultaneously, under the setting of clean mechanism, avoid the filtration pore of drainage hole and annular filter belt to block up to promote the dehydration rate of mud extrusion.
Furthermore, the roller cleaning mechanism is positioned between the sludge inlet and the sludge outlet, the filter belt cleaning mechanism is positioned on two sides of the moving path of the annular filter belt, and the roller cleaning mechanism and the filter belt cleaning mechanism respectively 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 roller cleaning mechanism and the cleaning roller brush rotate oppositely to the extrusion roller, and the cleaning roller brushes of the filter belt cleaning mechanisms positioned at two sides of the annular filter belt are staggered up and down and synchronously rotate oppositely. Such a layout, not only rational in infrastructure, extrusion cylinder outer wall and annular filter belt directly form clear arc extrusion passageway after clean moreover. Meanwhile, the cleaning roller brushes move oppositely, so that the cleaning roller brushes are beneficial to cleaning, the squeezing rollers and the annular filter belt move, and especially the cleaning efficiency and the cleaning effect of the annular filter belt are further improved in the staggered opposite movement of the front surface and the back surface of the annular filter belt.
Due to the implementation of the technical scheme, compared with the prior art, the invention has the following advantages:
on one hand, the invention effectively improves the dehydration rate by extending the length of the arc-shaped extrusion channel and having small thickness change rate; on the other hand, under the transmission of the arc-shaped extrusion channel formed by the equidirectional movement, the dewatered sludge is convenient to discharge, thereby further improving the dewatering efficiency.
Drawings
The invention is described in further detail below with reference to the following figures and specific examples:
FIG. 1 is a schematic front view of a drum extruder dehydrator of the present invention;
FIG. 2 is a rear view of FIG. 1;
FIG. 3 is a schematic partial cross-sectional view of FIG. 2;
wherein: 1. a squeezing roller; 2. squeeze plates (endless filter belt); 20. a filter belt body; 21. a set of transport rollers; 210. a squeeze roll; 211. a sludge discharging conveying roller; 212. a transfer roller; 213. a filter belt tensioning adjusting roller; 3. a pressing base; 4. a negative pressure vacuumizing mechanism; 40. a vacuum water tank; 41. an air exhaust pipe; 42. a water pumping pipe; 43. a vacuum pump; 5. a sludge discharge guide channel; 6. an inlet mud guide part; 60. a mud feeding scraper; 61. an arc-shaped mud guide plate; 610. a rounded corner portion; 611. an inclined portion; 7. an outlet mud guide part; 70. a mud discharging joint; 71. a mud scraper is discharged; 8. a cylinder cleaning mechanism; 9. a filter belt cleaning mechanism; 80, 90, a cleaning seat; 81, 91, cleaning a rolling brush; 82, 92, a cleaning liquid pipeline; 820, 920, liquid inlet pipe; 821, 921, a drain pipe; q, an arc extrusion channel; c1, c2, c6 and gears; c3, c7, synchronization chain; c4, tension gear; c5, power gear; c8, transmission gear.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments so that the above objects, features and advantages of the 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. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, but are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless explicitly specified otherwise.
In the present invention, unless otherwise explicitly stated or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., as being permanently connected, detachably connected, or integral; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise explicitly specified or limited, a first feature "on" or "under" a second feature may be directly contacted with the first and second features, or indirectly contacted with the first and second features through an intermediate. Also, a first feature "on," "above," and "over" a second feature may be directly on or obliquely above the second feature, or simply mean that the first feature is at a higher level than the second feature. A first feature "under," "beneath," and "under" a second feature may be directly under or obliquely under the second feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
It will be understood that when an element is referred to as being "secured to" 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. As used herein, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are for purposes of illustration only and do not denote a single embodiment.
As shown in fig. 1, the roller squeeze dehydrator of the present embodiment includes a squeeze roller 1 and a squeeze plate 2 that can rotate around their axes, where the squeeze plate 2 is formed by an annular filter belt, and an arc-shaped squeeze channel Q is formed between the outer wall of the squeeze roller 1 and the annular filter belt.
Specifically, the thicknesses of the arc-shaped extrusion channel Q formed at the mud inlet and the mud outlet are h1 and h2 respectively, wherein h2 is less than h1, and the thickness of the arc-shaped extrusion channel from the mud inlet to the mud outlet is gradually reduced.
As shown in fig. 2 and 3, the length of the arc-shaped extrusion channel Q is L, the circumference of the extrusion drum 1 is C, and C is 3/4L, wherein the mud inlet is located below the mud outlet, and the arc-shaped extrusion channel Q at the mud inlet extends up and down and is tangent to the circumferential direction of the extrusion drum 1. 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 favorable for the concentrated sludge to enter the arc-shaped extrusion channel Q, and the dehydration efficiency is increased.
The surface of the extrusion roller 1 is formed with water filtering holes, and water generated by extrusion can be filtered out from the water filtering holes.
The endless filter belt includes a filter belt body 20, a set of transport rollers 21 formed within the filter belt body 20, wherein the filter belt body 20 may be a conventional filter belt cloth.
The conveying roller group 21 comprises a plurality of extrusion rollers 210, mud discharging conveying rollers 211 and transfer conveying rollers 212 which are distributed around the center of the extrusion roller 1 at intervals, and the filter belt body 20 is sleeved on the extrusion rollers 210, the mud discharging conveying rollers 211 and the transfer conveying rollers 212 and forms a closed ring. In this way, effective support of the arc-shaped extrusion channel is formed by the extrusion rollers; the extruded sludge is taken out 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 roller 21 of the conveying roller group further includes a belt tension adjusting roller 213, wherein the tightness of the belt body 20 is adjusted by the belt tension adjusting roller 213, so that the belt body 20 forming the arc-shaped squeezing passage Q provides the best squeezing effect.
The pressing roller 210 is movably adjustable in the radial direction of the pressing cylinder 1. Therefore, the thickness of the arc-shaped extrusion channel is adjusted according to actual requirements so as to meet the extrusion requirements.
The sludge outlet transmission roller 211 is in synchronous transmission connection with the extrusion roller 1, the extrusion roller 1 and the filter belt body 20 move synchronously, and sludge is transmitted from the sludge inlet to the sludge outlet in the same movement direction. Therefore, the same power source can be shared, and the synchronous movement of the roller and the filter belt body can be controlled conveniently.
Specifically, a gear c1 is formed at the end of the squeezing roller 1, a gear c2 is also arranged at the end of the mud output conveying roller 211, then a synchronous chain c3 is adopted to synchronously connect the two gears c1 and c2, and simultaneously 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 squeezing roller 1 and the filter belt body 20 synchronously move under the output of the power gear c 5.
Meanwhile, the sludge discharging transmission roller 211 is arranged flush with the extrusion roller 210 positioned at the uppermost part, and the dehydrator also comprises an extrusion seat 3 which is internally provided with a closed extrusion cavity formed by the filter belt body 20 and the extrusion roller 1; and the negative pressure vacuumizing mechanism 4 is communicated with the extrusion cavity of the extrusion seat 3, a mud outlet guide channel 5 is formed between the filter belt body 20 from the mud outlet to the mud outlet transmission roller 211 and the extrusion seat 3, the negative pressure vacuumizing mechanism 4 keeps negative pressure in the extrusion cavity, and water separated by extrusion is pumped out of the extrusion cavity. Draw water through the negative pressure, not only make things convenient for the collection of the muddy water that filters out from the filter belt body, can further promote the extrusion dehydration rate moreover (avoid the filtration pore to appear blockking up, in case there is water can the suction simultaneously).
Specifically, the negative pressure vacuum pumping mechanism 4 includes a vacuum water tank 40, an exhaust tube 41 and a water pumping tube 42 both communicated with the vacuum water tank 40, and a vacuum pump 43 communicated with the exhaust tube 41, wherein the water pumping tube 42 is connected to the extrusion base 3 and is communicated with the extrusion chamber.
The filter belt body forming the mud outlet guide channel 5 is horizontally arranged, and the dehydrator further comprises an inlet mud guide piece 6 and an outlet mud guide piece 7 which are respectively arranged at the inlet and the outlet of the mud outlet guide channel 5.
Specifically, the inlet mud guide 6 includes a mud entering scraper 60 extending along the length direction of the extrusion roller 1 and having a lower portion abutting against the surface of the extrusion roller 1, and an arc mud guide plate 61 disposed on the top of the mud entering scraper 60 and having an arc transition to the top of the extrusion seat 3. The direction that forms at play mud guide way entry makes things convenient for mud to get into a mud guide way with going into the mud scraper blade, and establishes at scraping of scraper blade, reduces the probability that mud bonds on the squeeze roll surface.
In this example, the arc-shaped mud guide 61 is integrally formed with the extrusion seat 3, and the arc-shaped mud guide 61 includes a rounded portion 610 and an inclined portion 611 inclined inward, wherein the mud scraper 60 is fixed to an outer side of the inclined portion 611, a guide slope is formed at a lower end portion of the inclined portion 611, and the scraped mud is guided along a slope surface into a passage formed by the rounded portion 610.
The outlet mud guide 7 includes a mud discharging joint 70 abutting on the arc-shaped path formed at the mud discharging conveying roller 211 and extending in a tangential direction, and a mud discharging scraper 71 provided in the mud discharging joint 70 and abutting on the surface of the filter belt body. The mud that unloads that export formation of mud guide way connects and goes out the mud scraper blade, and the mud of being convenient for is thrown away from going out mud guide way, and what go out the mud scraper blade simultaneously scrapes and establishes down, reduces the probability that mud bonds and strains the surface at the annular.
In this example, a mud discharge channel is formed inside the mud discharge joint 70, the angle formed by the mud discharge channel and the vertical direction is 30 °, and the mud discharge scraper 71 forms the bottom wall of the mud discharge channel. The formed sludge scraping effect is good, the sludge is convenient to centrifugally throw away, and the sludge yield is improved.
The dehydrator also comprises a roller cleaning mechanism 8 for cleaning the surface of the extrusion roller 1 respectively, and a filter belt cleaning mechanism 9 for cleaning the front and the back of the annular filter belt respectively, and under the arrangement of the cleaning mechanisms, the filter holes of the filter holes and the annular filter belt are prevented from being blocked, so that the dehydration rate of sludge extrusion is improved.
In this case, the roller cleaning mechanism 8 is located between the sludge inlet and the sludge outlet, and the belt cleaning mechanism 9 is located on both sides of the moving path of the endless belt.
Specifically, the roller cleaning mechanism 8 includes a cleaning base 80, a cleaning roller brush 81, and a cleaning liquid pipeline 82, wherein the cleaning liquid pipeline 82 includes a liquid inlet pipe 820 communicated with a water outlet of the sludge concentrating cylinder, and a water outlet pipe 821 communicated with the cleaning base 80.
In this embodiment, the cleaning seat 80 and the outer wall surface of the squeezing roller 1 form a relatively closed cavity, wherein the upper part of the cavity is communicated with the water outlet of the sludge concentration tank through the liquid inlet pipe 820, the cleaning roller brush 81 extends along the length direction of the squeezing roller 1, and brushes the surface of the squeezing roller 1 around the center line of the length direction and the squeezing roller 1 in the opposite direction or reverse direction, and the brushed mud water is discharged from the water discharge pipe 821, so that the squeezing roller 1 is cleaned during operation by the water separated by concentration, and the water filtering holes on the surface of the squeezing roller are ensured not to be blocked easily.
Two groups of filter belt cleaning mechanisms 9 are arranged on the front surface and the back surface of the filter belt body 20 correspondingly.
In this embodiment, taking the front side as an example, the belt cleaning mechanism 9 includes a cleaning base 90, a cleaning roller brush 91, and a cleaning liquid pipeline 92, wherein the cleaning liquid pipeline 92 includes a liquid inlet pipe 920 communicated with the water outlet of the sludge concentration cylinder, and a water outlet pipe 921 communicated with the cleaning base 90.
Specifically, a water receiving cavity is formed in the cleaning seat 90, the cleaning rolling brush 91 is rotatably arranged in the water receiving cavity, and a water outlet of the concentration cylinder is respectively communicated with the two water receiving cavities on the front side and the back side of the filter belt body 20 through branch circuits.
In this embodiment, the cleaning rollers 91 corresponding to the front and back surfaces rotate in opposite directions, specifically, the two gears c6 are engaged to rotate in opposite directions, and the synchronous chain c7 is connected to the transmission gear c8 of the cleaning roller 81 in a transmission manner, so as to ensure that the squeezing roller 1 and the filter belt body 20 are cleaned synchronously, and the outer wall of the squeezing roller and the annular filter belt are cleaned to directly form a clean arc squeezing channel Q.
In addition, the front and rear cleaning rollers 91 are disposed to be vertically staggered, so that the cleaning of the belt body 20 can be performed more preferably.
To sum up, the implementation process of this embodiment is as follows:
from sludge concentration device's play mud passageway exhaust mud, get into the income mud mouth of the arc extrusion passageway Q that squeeze roll 1 and annular form's screen body 20 formed, and under squeeze roll 1 and the extrusion of screen body 20 motion, mud is carried after going out mud from going into the mud mouth, and take extruded negative pressure water out and strain to squeeze roll 1 and collect in transportation process, mud through extrusion simultaneously gets into out mud guide way 5, and under screen body 20 motion, discharge from the mud passageway, accomplish the dehydration of mud.
Therefore, the present embodiment has the following advantages:
1. the length of the channel is extended through arc extrusion, the thickness change rate is small, and the dehydration rate is effectively improved;
2. the dewatered sludge is conveniently discharged under the transmission of an arc-shaped extrusion channel formed by the equidirectional movement, so that the dewatering efficiency is further improved;
3. under the premise of pumping water under negative pressure, sludge is extruded, and the dehydration rate is further improved;
4. under the arrangement of the mud inlet scraper and the mud outlet scraper, sludge on the roller and the filter belt body is scraped, and simultaneously, the roller and the filter belt body are respectively cleaned by the cleaning rolling brush which moves synchronously, so that the water filtering holes of the formed arc extrusion channel are ensured to be in a smooth state, and the dehydration is facilitated;
5. the cleaning of the roller and the filter belt body is carried out by adopting the water formed by the sludge concentration device, so that the cleaning is facilitated in the opposite movement of the cleaning roller brush, the movement of the squeezing roller and the annular filter belt is facilitated, and especially in the staggered opposite movement of the front surface and the back surface of the annular filter belt, the cleaning efficiency and the cleaning effect of the annular filter belt are further improved;
6. the sludge discharge guide channel is arranged to facilitate the discharge of sludge, and the inlet sludge guide piece and the outlet sludge guide piece of the inlet and the outlet greatly reduce the sludge sticking rate of the surfaces of the roller and the filter belt body and facilitate the subsequent cleaning;
7. the thickness of the arc-shaped extrusion channel can be adjusted at any time according to the extrusion requirement by arranging the extrusion rollers which can be movably adjusted along the radial direction of the extrusion roller;
8. the extrusion roller and the annular filter belt synchronously move and share one drive, so that the mud discharging is convenient to control, and the cost is saved; meanwhile, the cleaning rolling brushes of the roller and the filter belt body synchronously move and share one drive, so that the cleaning is convenient to implement, and the cost is saved.
The present invention has been described in detail in order to enable those skilled in the art to understand the invention and to practice it, and it is not intended to limit the scope of the invention, and all equivalent changes and modifications made according to the spirit of the present invention should be covered by the present invention.
Claims (10)
1. The utility model provides a cylinder extrusion formula hydroextractor, its is including can be around self axis pivoted squeeze roll, stripper plate, wherein squeeze roll outer wall with form arc extrusion passageway between the stripper plate, arc extrusion passageway has into mud mouth and a mud mouth, arc extrusion passageway length is L, squeeze roll's girth is C, its characterized in that: 1/2C is less than or equal to L and is less than or equal to 5/6C, the stripper plate comprises annular filtering belt, arc extrusion passageway is in advance the mud mouth with the thickness that the mud mouth formed is h1 and h2 respectively, and wherein h2 < h1, and certainly advance the mud mouth to the mud mouth the arc extrusion passageway thickness diminishes gradually, the hydroextractor is still including setting up the play mud guide way of mud mouth department, annular filtering belt with extrusion cylinder's direction of motion is unanimous and with mud certainly advance the mud mouth to go out mud guide way transmission.
2. The roller extrusion dehydrator of claim 1, wherein: the annular filter belt includes the filter belt body, forms this internal transmission roller set of filter belt, wherein the transmission roller set roller includes many round squeeze roll, play mud transmission roller, the transfer transmission roller of squeeze roll center interval distribution, the filter belt body cover is established squeeze roll, play mud transmission roller, transfer transmission roller are last and constitute closed annular.
3. The drum squeeze dehydrator of claim 2, wherein: the extrusion roller can be movably arranged along the radial direction of the extrusion roller.
4. The drum squeeze dehydrator of claim 2, wherein: the mud discharging transmission roller is in synchronous transmission connection with the squeezing roller, and the squeezing roller and the filter belt body move synchronously.
5. The roller extrusion dehydrator of claim 2, wherein: the dehydrator also comprises an extrusion seat, wherein a closed extrusion cavity is formed inside the extrusion seat, and the extrusion seat, the filter belt body and the extrusion roller form a closed extrusion cavity; and the negative pressure vacuumizing mechanism is communicated with the extrusion cavity of the extrusion seat, a mud discharging guide channel is formed between the filter belt body between the mud outlet and the mud discharging transmission roller and the extrusion seat, the negative pressure vacuumizing mechanism keeps negative pressure in the extrusion cavity, and water removed by extrusion is pumped out of the extrusion cavity.
6. The roller extrusion dehydrator of claim 5, wherein: the mud discharging transmission roller is flush with the uppermost extrusion roller, the filter belt body forming the mud discharging guide channel is horizontally arranged, the dehydrator also comprises an inlet mud guide piece and an outlet mud guide piece which are respectively arranged at an inlet and an outlet of the mud discharging guide channel, wherein the inlet mud guide piece comprises a mud inlet scraper plate which extends along the length direction of the extrusion roller and the lower part of which is abutted against the surface of the extrusion roller, and an arc mud guide plate which is arranged at the top of the mud inlet scraper plate and is in arc transition to the top of the extrusion seat; the export lead the mud spare include with it locates to form the arc passageway butt joint and along the mud joint that unloads of tangential direction extension and set up to go out mud and connect in and contradict the play mud scraper blade on screen body surface.
7. The roller extrusion dewaterer of claim 6, characterized in that: the mud discharging joint is internally provided with a mud discharging channel, the angle formed by the mud discharging channel and the vertical direction is 30-60 degrees, and the mud discharging scraper plate forms the bottom wall of the mud discharging channel.
8. The drum squeeze dehydrator of claim 1, wherein: the mud outlet is positioned above the mud inlet, and the mud inlet extends up and down to be tangential to the circumferential direction of the extrusion roller.
9. The drum squeeze dehydrator of claim 1, wherein: the dewatering machine further comprises a roller cleaning mechanism for cleaning the surface of the squeezing roller and a filter belt cleaning mechanism for cleaning the front and the back of the annular filter belt respectively, wherein the roller cleaning mechanism and the filter belt cleaning mechanism clean the squeezing roller and the annular filter belt synchronously.
10. The roller extrusion dewaterer of claim 9, characterized in that: the roller cleaning mechanism is positioned between the sludge inlet and the sludge outlet, the filter belt cleaning mechanism is positioned on two sides of a moving path of the annular filter belt, and the roller cleaning mechanism and the filter belt cleaning mechanism respectively comprise a cleaning seat forming a cleaning cavity, a cleaning rolling brush positioned in the cleaning cavity and a cleaning solution pipeline, wherein the cleaning solution pipeline comprises a liquid inlet pipe communicated with a water outlet of the sludge concentration cylinder and a drain pipe communicated with the cleaning seat; and the roller cleaning mechanism and the cleaning roller brush rotate opposite to the extrusion roller, and the cleaning roller brushes of the filter belt cleaning mechanism positioned on two sides of the annular filter belt are staggered up and down and synchronously rotate opposite to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210343377.1A CN114772895A (en) | 2022-03-31 | 2022-03-31 | Roller extrusion type dehydrator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210343377.1A CN114772895A (en) | 2022-03-31 | 2022-03-31 | Roller extrusion type dehydrator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114772895A true CN114772895A (en) | 2022-07-22 |
Family
ID=82427051
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210343377.1A Pending CN114772895A (en) | 2022-03-31 | 2022-03-31 | Roller extrusion type dehydrator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114772895A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104069671A (en) * | 2014-06-25 | 2014-10-01 | 扬州市天龙环保设备有限公司 | Concave and convex rolling shaft pressure device of belt filter press |
| CN110422983A (en) * | 2019-08-14 | 2019-11-08 | 浙江科力尔环保设备股份有限公司 | Vertical sludge dewaterer |
| CN112537894A (en) * | 2020-12-22 | 2021-03-23 | 浙江科力尔环保设备股份有限公司 | Sludge dewatering machine |
| CN216918979U (en) * | 2022-03-31 | 2022-07-08 | 浙江科力尔环保设备股份有限公司 | Roller extrusion type dehydrator |
-
2022
- 2022-03-31 CN CN202210343377.1A patent/CN114772895A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104069671A (en) * | 2014-06-25 | 2014-10-01 | 扬州市天龙环保设备有限公司 | Concave and convex rolling shaft pressure device of belt filter press |
| CN110422983A (en) * | 2019-08-14 | 2019-11-08 | 浙江科力尔环保设备股份有限公司 | Vertical sludge dewaterer |
| CN112537894A (en) * | 2020-12-22 | 2021-03-23 | 浙江科力尔环保设备股份有限公司 | Sludge dewatering machine |
| CN216918979U (en) * | 2022-03-31 | 2022-07-08 | 浙江科力尔环保设备股份有限公司 | Roller extrusion type dehydrator |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN216918979U (en) | Roller extrusion type dehydrator | |
| CN216890595U (en) | Vertical sludge concentration and dehydration integrated machine | |
| CN114772895A (en) | Roller extrusion type dehydrator | |
| CN114804574B (en) | Vertical sludge concentration and dehydration integrated machine | |
| CN116840432B (en) | Fish, shrimp and algae ecological co-culture water quality detection equipment and method | |
| CN115804980B (en) | Self-cleaning filter for ship ballast water treatment system | |
| CN117383785A (en) | Centrifugal separation device for energy-saving river sludge treatment | |
| CN2910325Y (en) | Cylinder solid/liquid separator adopting synthetic resin thread | |
| CN114733653B (en) | Seaweed fertilizer stoste two-stage separation equipment | |
| CN216941935U (en) | Municipal administration discarded object solid-liquid filtering separation device | |
| CN215627532U (en) | Concentrated pressure filter of integral type belt | |
| CN115304144A (en) | Processing apparatus of solution polymerization butadiene styrene rubber waste water | |
| CN215085358U (en) | Special filter cloth running gear of belt filter press | |
| CN214327511U (en) | Sludge dewatering machine | |
| CN214327512U (en) | Sludge concentration dehydration all-in-one machine | |
| CN211871782U (en) | Energy-concerving and environment-protective waste water treatment equipment | |
| CN114620915B (en) | Sludge concentration and dehydration method | |
| CN207525074U (en) | A kind of phosphorus production sewage disposal system | |
| CN112537894A (en) | Sludge dewatering machine | |
| CN112537893A (en) | Sludge concentration dehydration all-in-one machine | |
| CN219546734U (en) | Water treatment solid-liquid separator | |
| CN217025730U (en) | Improved vertical belt filter press | |
| CN219440921U (en) | Cleaning structure | |
| CN220758120U (en) | Mud feeding structure of belt type concentration filter press | |
| CN220555664U (en) | Air-floatation precipitation ultrafiltration integrated water purifying equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |