CN111672170B - Method for removing sludge in sedimentation tank in sewage treatment - Google Patents
Method for removing sludge in sedimentation tank in sewage treatment Download PDFInfo
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- CN111672170B CN111672170B CN202010480230.8A CN202010480230A CN111672170B CN 111672170 B CN111672170 B CN 111672170B CN 202010480230 A CN202010480230 A CN 202010480230A CN 111672170 B CN111672170 B CN 111672170B
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- shaped buckle
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- 239000010802 sludge Substances 0.000 title claims abstract description 97
- 238000004062 sedimentation Methods 0.000 title claims abstract description 88
- 238000000034 method Methods 0.000 title claims abstract description 57
- 239000010865 sewage Substances 0.000 title claims abstract description 47
- 238000007789 sealing Methods 0.000 claims abstract description 131
- 238000003756 stirring Methods 0.000 claims abstract description 71
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 63
- 238000007790 scraping Methods 0.000 claims abstract description 48
- 230000002457 bidirectional effect Effects 0.000 claims abstract description 41
- 238000001125 extrusion Methods 0.000 claims abstract description 22
- 230000005540 biological transmission Effects 0.000 claims description 31
- 230000008569 process Effects 0.000 claims description 13
- 239000013049 sediment Substances 0.000 claims description 7
- 239000002002 slurry Substances 0.000 abstract description 13
- 238000004140 cleaning Methods 0.000 abstract description 3
- 238000001556 precipitation Methods 0.000 description 8
- 238000009434 installation Methods 0.000 description 5
- 238000007667 floating Methods 0.000 description 4
- 239000002893 slag Substances 0.000 description 4
- 238000007599 discharging Methods 0.000 description 3
- 230000001376 precipitating effect Effects 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 208000005156 Dehydration Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/24—Feed or discharge mechanisms for settling tanks
- B01D21/245—Discharge mechanisms for the sediments
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/02—Settling tanks with single outlets for the separated liquid
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treatment Of Sludge (AREA)
- Removal Of Floating Material (AREA)
Abstract
The invention discloses a sludge removing method in a sedimentation tank in sewage treatment, which comprises the steps of controlling a walking frame device to move a sealing U-shaped buckle cover to a position of the sedimentation tank needing to remove sludge, controlling a buckle cover lifting device to vertically drop the sealing U-shaped buckle cover to buckle the sealing U-shaped buckle cover at the bottom of the sedimentation tank, driving a telescopic rotating shaft to rotate by a sludge scraping driving motor, driving an extrusion wheel disc to move downwards by the rotation of the telescopic rotating shaft, driving the extrusion wheel disc to move downwards to extrude a sealing guide plate, enabling two U-shaped sealing buckle covers on the sealing U-shaped buckle cover to be unfolded outwards, enabling a lower water through hole on the sealing U-shaped buckle cover to be staggered with an upper water through hole on the U-shaped sealing buckle cover, sealing the lower water through hole, continuously rotating the telescopic rotating shaft, screwing the bottom end of the telescopic rotating shaft with a motor umbrella tooth, further rotating a bidirectional screw rod to drive a sludge scraper and a stirring brush to work, and starting a suction pump to suck slurry, according to the setting, when the two mud scrapers are closed, the cleaning of the precipitated sludge in the sealed U-shaped buckle cover is finished.
Description
Technical Field
The invention relates to sewage treatment equipment and the technical field, in particular to a method for removing sludge in a sedimentation tank in sewage treatment.
Background
The sedimentation is one of the most basic methods in sewage treatment, and is a process for achieving solid-liquid separation by utilizing the settleability of suspended particles in water and generating sedimentation under the action of a gravity field.
Among the above-mentioned sewage treatment process, the mud treatment of sediment is the problem that must consider, along with the continuous innovation of sewage sedimentation treatment technique, the sedimentation tank is also diversified, no matter the sedimentation tank of that kind of structure, after realizing water, sediment mud separation, all need clear away mud from the sedimentation tank as early as possible, current sediment mud clear away method, mainly after realizing water, sediment mud separation, it flows next processing procedure to get rid of the upper clear water, after the sedimentation tank remains sediment mud, adopt mud scraping device with mud gathering to the mud discharge mouth discharge, the next time mud sedimentation of recirculation is handled.
The sludge removing mode is carried out under the condition that upper clear water is discharged, so that the sewage treatment tank is always in the process of removing sludge, the operation of precipitating sludge in the precipitation tank cannot be utilized in real time, and the use efficiency of the precipitation tank is seriously influenced.
In addition, in the sedimentation tank, a process for treating floating slag of sewage is also provided, the floating slag is generally salvaged by using a strainer manually, and the process is labor-consuming and time-consuming.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, provides a method for removing sludge in a sedimentation tank in sewage treatment, and solves the problem that the existing treatment mode of precipitated sludge is carried out under the condition of discharging clear water on the upper layer of the sedimentation tank, so that the sewage treatment tank is always in a sludge removal process, the sedimentation tank cannot be used for sludge removal operation in real time, and the use efficiency of the sedimentation tank is seriously influenced. In addition, in the sedimentation tank, a process for treating floating slag of sewage is also provided, which is a problem that the fishing is carried out by using a strainer manually, and the labor and the time are wasted.
The invention is realized by the following technical scheme:
a method for removing sludge in a sedimentation tank in sewage treatment,
The invention relates to a method for removing sludge in a sedimentation tank in sewage treatment, which adopts a sealing U-shaped buckle cover capable of being opened and closed controllably, the sealing U-shaped buckle cover is conveyed to the bottom of a designated sedimentation tank under the control of a walking frame device and a buckle cover lifting device, the precipitated sludge at the bottom of the sedimentation tank is sealed in the sealing U-shaped buckle cover, then the sludge at the bottom of the sedimentation tank is scraped by a mud scraper, sludge blocks are formed into slurry under the stirring of a stirring brush, the slurry is continuously pumped out by a suction pump while being scraped and stirred, and then the slurry is dehydrated, so that the precipitated sludge at the bottom of the sedimentation tank is removed, and the sealed U-shaped buckle cover is transferred to a place which is not removed under the control of the walking frame device and the buckle cover lifting device to continuously remove the precipitated sludge in a circulating manner.
Further, the method comprises a step 7 of finishing clearing of the sludge precipitated in the primary sealing U-shaped buckle cover, starting a sludge scraping driving motor to rotate reversely for a period of time, enabling a lower water through hole in the sealing U-shaped buckle cover to be opened in a sealing mode, enabling a sludge scraping knife to reset and run to two ends of the bidirectional screw rod, enabling the sealing U-shaped buckle cover to be lifted up by controlling the buckle cover lifting device, enabling the sealing U-shaped buckle cover to leave the sewage surface, enabling the sealing U-shaped buckle cover to move to the next position adjacent to the sedimentation tank where the sludge needs to be cleared by controlling the walking frame device, and circularly starting to clear the sludge.
Furthermore, a scum baffle is hung on one side of the walking frame device and is attached to the outer wall of one side of the sealed U-shaped buckle cover.
Furthermore, the walking frame device comprises a walking motor, pulleys and supporting shafts, guide rails are paved on the edges of the sedimentation tank, at least two supporting shafts are erected on the sedimentation tank, the pulleys are arranged at two ends of the supporting shafts, the pulleys are arranged on the guide rails in a sliding mode, the supporting shafts are fixedly connected through connecting rods, the walking motor is in transmission connection with at least one pulley through a transmission chain, and the walking frame device is driven to move on the guide rails through the walking motor.
Furthermore, the buckle cover lifting device comprises lifting screws, lifting screw barrels, lifting cross shafts, lifting longitudinal shafts and lifting motors, the lower ends of the four lifting screws are connected to four corners of the sealed U-shaped buckle cover, each lifting screw is connected with one lifting screw barrel, worm gears are arranged at the upper end portions of the lifting screw barrels, the lower end portions of the lifting screw barrels are mounted on the walking frame device through bearings, two lifting screw barrels which are longitudinally corresponding to each other are in transmission connection through the lifting cross shafts, worms which are in meshing transmission with the worm gears on the lifting screw barrels are arranged at the two ends of each lifting cross shaft, the two ends of each lifting longitudinal shaft are in transmission connection with the corresponding lifting cross shafts through a pair of umbrella teeth, and the middle portions of the lifting longitudinal shafts are in transmission connection with the lifting motors arranged on the walking frame device through a pair of umbrella teeth.
Furthermore, the bottom of the cover plates on the front side and the rear side of the sealed U-shaped buckle cover are provided with folded edges, a folded edge groove is formed between the folded edges and the cover plates, the cover plates on the front side and the rear side of the U-shaped sealed buckle cover are inserted into the folded edge groove to slide, a plurality of limiting sliding grooves are formed in the folded edges, and limiting sliding blocks are arranged on the U-shaped sealed buckle cover corresponding to the limiting sliding grooves.
Further, flexible pivot includes integral key shaft, spline housing, lower integral key shaft, goes up integral key shaft upper end and scrapes mud driving motor's rotation axis and is connected, goes up integral key shaft lower extreme and inserts and establish in the spline housing, and lower integral key shaft upper end is inserted and is established in the spline housing, and lower integral key shaft lower extreme threaded connection is on the motor bevel gear, has seted up the strip groove on the spline housing, and the last integral key shaft that the strip groove corresponds and the lower integral key shaft end all is equipped with the anticreep backing pin.
Furthermore, the lower end of the lower spline shaft is provided with a telescopic hole, a limiting rod is axially inserted in the motor bevel gear, the upper end of the limiting rod is inserted in the telescopic hole, and the upper end of the limiting rod is provided with a limiting head.
Furthermore, a controller is further arranged, and the walking motor, the mud scraping driving motor, the lifting motor and the suction pump are all in control connection with the controller.
Compared with the prior art, the invention has the following advantages and beneficial effects:
1. the invention relates to a method for removing sludge in a sedimentation tank in sewage treatment, which adopts a sealing U-shaped buckle cover capable of being controlled to be opened and closed, controls the sealing U-shaped buckle cover to be sent to the bottom of a designated sedimentation tank through a walking frame device and a buckle cover lifting device, seals the precipitated sludge at the bottom of the sedimentation tank in the sealing U-shaped buckle cover, scrapes off the sludge at the bottom of the sedimentation tank through a mud scraper, forms sludge blocks into slurry under the stirring of a stirring brush, continuously pumps out the slurry through a suction pump while scraping and stirring, subsequently dehydrates the slurry, removes the precipitated sludge at the bottom of the sedimentation tank, and controls the sealing U-shaped buckle cover to be transferred to a place which is not removed through a walking frame device and a buckle cover lifting device to continuously and circularly remove the precipitated sludge;
2. the invention relates to a method for removing sludge in a sedimentation tank in sewage treatment, the settled sludge at the bottom of the sedimentation tank is sealed in a sealed U-shaped buckle cover, a bidirectional screw rod continuously rotates to drive a sludge scraper and a stirring brush to work, a relatively sealed space is formed in the sealed U-shaped buckle cover, if other sludge scraping and stirring modes are adopted, slurry is continuously pumped out by a suction pump, negative pressure is formed in the sealed U-shaped buckle cover certainly, the sealed U-shaped buckle cover cannot form absolute seal, water outside the sealed U-shaped buckle cover can continuously flow into the sealed U-shaped buckle cover certainly, and thus the slurry in the sealed U-shaped buckle cover 1 cannot be pumped out, the invention adopts the design that the sludge scraper is sealed at two ends of the sealed U-shaped buckle cover, the sludge scrapers at two sides are continuously closed in the pumping process of the suction pump, so that the pressure difference formed by the pumping of the suction pump is synchronously compensated by the movement of the sludge scrapers, the pressure intensity in the sealed U-shaped buckle cover 1 is always consistent with that outside the sealed U-shaped buckle cover, so that the circulation of the inside and outside of the sealed U-shaped buckle cover is reduced as much as possible, and the high-efficiency and high-quality sludge removal is ensured;
3. the invention relates to a sludge removing method in a sedimentation tank in sewage treatment, which is provided with a telescopic rotating shaft, and an extrusion wheel disc for controlling the sealing and opening of a sealing U-shaped buckle cover is arranged on the telescopic rotating shaft, because the working environment of the sealing U-shaped buckle cover, a mud scraper and a stirring brush is underwater for a long time, the sealing and opening of the sealing U-shaped buckle cover, the control, mud scraper and the stirring brush can not be directly linked with a motor or other kinetic energy equipment for safety, remote transmission is adopted, more parts are required to be driven, and the sealing U-shaped buckle cover, the mud scraper and the stirring brush can not be relatively fixed relative to the driving equipment, the invention creatively adopts the structural design of the telescopic rotating shaft, realizes the sealing and opening of the sealing U-shaped buckle cover by driving of a mud scraper driving motor, realizes the mud scraping work of the mud scraper and realizes the mud stirring work of stirring brush, thereby reducing the complex structure of the equipment and realizing the installation function.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:
FIG. 1 is a schematic structural view of a sludge removing method in a settling tank in sewage treatment according to the present invention;
FIG. 2 is a schematic top view of a method for removing sludge from a settling tank in sewage treatment according to the present invention;
FIG. 3 is a schematic view of a connection structure of the telescopic shaft of the present invention;
FIG. 4 is a schematic structural view showing an opened state of an upper water passage hole of a top cover plate of the sealing U-shaped buckle cover according to the present invention;
FIG. 5 is a schematic structural view showing a closed state of an upper water passage hole of a top cover plate of the sealing U-shaped cover of the present invention;
FIG. 6 is a schematic structural view showing an opened state of the upper water passage holes of the cover plates on the two side surfaces of the sealing U-shaped buckle cover according to the present invention;
FIG. 7 is a schematic structural view showing a closed state of upper water holes in cover plates on two side surfaces of the sealing U-shaped buckle cover according to the present invention;
FIG. 8 is a schematic view of the elevating screw cylinder of the present invention;
reference numbers and corresponding part names in the drawings:
1-sealing U-shaped buckle cover, 2-mud scraping knife, 3-stirring brush, 4-mud scraping driving motor, 5-telescopic rotating shaft, 6-sedimentation tank, 7-lifting screw rod, 8-bidirectional screw rod, 9-stirring brush bracket, 10-stirring brush rotating rod, 11-rotating rod bevel gear, 12-spline barrel bevel gear, 13-motor bevel gear, 14-screw rod bevel gear, 15-lower water through hole, 16-U-shaped sealing buckle cover, 17-upper water through hole, 18-spring reset piece, 19-sealing guide plate, 20-extrusion wheel disc, 21-suction pump, 22-suction pipeline, 23-scum baffle, 24-walking motor, 25-pulley, 26-supporting shaft, 27-guide rail, 28-lifting screw barrel, 29-lifting longitudinal shaft, 30-lifting transverse shaft, 31-lifting motor, 32-worm gear, 33-flanging, 34-limiting sliding groove, 35-limiting sliding block, 36-upper spline shaft, 37-spline housing, 38-lower spline shaft, 39-anti-drop stop pin, 40-telescopic hole, 41-limiting rod and 42-limiting head.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not meant to limit the present invention.
Example 1
As shown in fig. 1 to 8, the present invention relates to a method for removing sludge in a settling tank in sewage treatment,
step 6, controlling the walking frame device to move the sealing U-shaped buckle cover 1 to the position of the sedimentation tank 6 needing to remove sludge, controlling the buckle cover lifting device to vertically drop the sealing U-shaped buckle cover 1 to buckle the sealing U-shaped buckle cover 1 at the bottom of the sedimentation tank 6, then starting the mud scraping drive motor 4, driving the mud scraping drive motor 4 to rotate the telescopic rotating shaft 5, firstly driving the extrusion wheel disc 20 to move downwards by the rotation of the telescopic rotating shaft 5, driving the extrusion wheel disc 20 to move downwards to extrude the sealing guide plate 19, enabling two U-shaped sealing buckle covers 16 on the sealing U-shaped buckle cover 1 to expand outwards, enabling the lower water through hole 15 on the sealing U-shaped buckle cover 16 to be staggered with the upper water through hole 17 on the U-shaped sealing buckle cover 16, further sealing the lower water through hole 15 on the sealing U-shaped buckle cover 1, continuously rotating the telescopic rotating shaft 5, and tightly screwing the bottom end of the telescopic rotating shaft 5 with the motor umbrella teeth 13, the motor bevel gear 13 is synchronously driven to rotate, the bidirectional screw 8 rotates to drive the mud scraping knives 2 and the stirring brushes 3 to work, the suction pump 21 is started to suck mud, and according to setting, when the two mud scraping knives 2 are closed, the cleaning of the sludge precipitated in the sealed U-shaped buckle cover 1 is finished.
And 7, after the removal of the precipitated sludge in the primary sealing U-shaped buckle cover 1 is completed, starting the mud scraping driving motor 4 to rotate reversely for a period of time, sealing and opening the lower water through hole 15 on the sealing U-shaped buckle cover 1, resetting the mud scraping knife 2 to move to two ends of the bidirectional screw 8, lifting the sealing U-shaped buckle cover 1 by controlling the buckle cover lifting device, separating the sealing U-shaped buckle cover 1 from the sewage surface, moving the sealing U-shaped buckle cover 1 to the next position adjacent to the sedimentation tank 6 where the sludge needs to be removed by controlling the walking frame device, and circularly starting to remove the sludge.
The invention solves the problem that the existing treatment mode of precipitated sludge is adopted and is carried out under the condition of discharging clear water on the upper layer of the precipitation tank, so that the sewage treatment tank is always in the process of removing sludge, the precipitation tank cannot be used for precipitating sludge in real time, and the use efficiency of the precipitation tank is seriously influenced.
As shown in fig. 1-8, the device for removing sludge in a sedimentation tank in sewage treatment comprises a walking frame device, a sealed U-shaped buckle cover 1, a buckle cover lifting device, a mud scraper 2, a stirring brush 3 and a mud scraping driving motor 4, wherein the walking frame device is erected above a sedimentation tank 6, the buckle cover lifting device is arranged on the walking frame device, four lifting screws 7 of the buckle cover lifting device are connected to the sealed U-shaped buckle cover 1, and the sealed U-shaped buckle cover 1 is controlled to lift through the buckle cover lifting device; the sealed U-shaped buckle closure 1 is made for the corrosion resistant plate of U-shaped structure, and the height of sealed U-shaped buckle closure 1 generally corresponds the setting according to the sediment mud thickness in the sedimentation tank 6, and the sedimentation tank 6 mud that corresponds this region with sealed U-shaped buckle closure 1 is whole sealed up as far as possible, reduces the sewage volume as far as again, and the mud water content of minimizing driving is convenient for follow-up to mud dehydration treatment reduce cost.
A bidirectional screw 8 is transversely hung in the sealed U-shaped buckle cover 1, two ends of the bidirectional screw 8 are hung at two ends of the sealed U-shaped buckle cover 1 through a lifting lug and a bearing, two ends of the bidirectional screw 8 are provided with opposite threads, spline grooves are arranged on the screws at two ends of the bidirectional screw 8 and are matched with spline cylinder bevel gears 12, the spline cylinder bevel gears 12 can freely slide on the bidirectional screw 8 and can synchronously rotate with the bidirectional screw 8, two ends of the bidirectional screw 8 are respectively in threaded connection with mud scrapers 2, when the bidirectional screw 8 rotates unidirectionally, the two mud scrapers 2 move close together, when the bidirectional screw 8 rotates reversely, the two mud scrapers 2 move apart, the end surface of the mud scraper 2 is in sliding sealing connection with the joint of the inner wall of the sealed U-shaped buckle cover 1, the mud scraper 2 is in order to realize the joint sealing with the inner wall of the sealed U-shaped buckle cover 1, a sealing rubber strip can be arranged at the joint of the outer side surface of the mud scraper 2 and the sealed U-shaped buckle cover 1, as shown in fig. 1, the mud scraper 2 can be set to have a vertical knife board at the upper end, the lower end is a knife board inclined to the outside, in operation, the cutting part of the mud scraper 2 is attached to the bottom surface of the 6 ponds in the sedimentation tank, the inner side of the mud scraper 2 is provided with the stirring brush support 9, the stirring brush support 9 is vertically provided with the stirring brush rotating rod 10, the stirring brush rotating rod 10 is of an elastic telescopic structure, as shown in fig. 1, a connecting sleeve for drawing on the stirring brush rotating rod 10 is seen, a spring can be arranged in the connecting sleeve to play an elastic telescopic function, the lower end of the stirring brush rotating rod 10 is provided with the stirring brush 3, the brush hair or the brush strip of the stirring brush 3 is mainly close to the bottom of the pond, and the bottom of the pond is conveniently cleaned. The upper end of a rotating rod 10 of the stirring brush is provided with a rotating rod bevel gear 11, a spline cylinder bevel gear 12 is slidably sleeved on a bidirectional screw rod 8 corresponding to the rotating rod bevel gear 11, the rotating rod bevel gear 11 is in meshing transmission with the spline cylinder bevel gear 12, an installation box body is arranged outside the rotating rod bevel gear 11 and the spline cylinder bevel gear 12 and used for protecting the rotating rod bevel gear 11 from being in meshing connection with the spline cylinder bevel gear 12, and when the mud scraper 2 moves, the stirring brush 3 synchronously moves and keeps a transmission state; the mud scraping driving motor 4 is arranged in the middle of the walking frame device, a telescopic rotating shaft 5 is connected to a rotating shaft of the mud scraping driving motor 4, a motor bevel gear 13 is connected to the bottom end of the telescopic rotating shaft 5 in a threaded manner, a screw rod bevel gear 14 is fixedly sleeved in the middle of the bidirectional screw rod 8, and the motor bevel gear 13 is in transmission connection with the screw rod bevel gear 14; the motor umbrella tooth 13 and the lead screw umbrella tooth 14 are also provided with a gear installation box body outside, a telescopic rotating shaft 5 is arranged, and an extrusion wheel disc 20 for controlling the sealing and the opening of the sealing U-shaped buckle cover 1 is arranged on the telescopic rotating shaft 5, because the working environment of the sealing U-shaped buckle cover 1, the mud scraper 2 and the stirring brush 3 is long-term underwater, the sealing U-shaped buckle cover 1 is driven to seal and open, the control and the mud scraper 2 and the stirring brush 3 can not be directly linked with a motor or other kinetic energy devices for safety, remote transmission is adopted, and because more driving parts are required, and the sealing U-shaped buckle cover 1, the mud scraper 2 and the stirring brush 3 can not be relatively fixed relative to a driving device, the invention creatively adopts the structural design of the telescopic rotating shaft 5, and realizes the sealing and the opening of the sealing U-shaped buckle cover 1 by the driving of the mud scraper driving motor 4, the mud scraping operation of the mud scraping knife 2 and the mud stirring operation of the stirring brush 3 are realized, so that the complex structure of the equipment is reduced, and the installation effect is realized.
The three side cover plates at the two ends of the sealed U-shaped buckle cover 1 are respectively provided with a lower water through hole 15, the two ends of the sealed U-shaped buckle cover 1 are respectively buckled with a U-shaped sealed buckle cover 16, the U-shaped sealed buckle cover 16 is provided with an upper water through hole 17 corresponding to the lower water through hole 15, the lower water through hole 15 and the upper water through hole 17 are arranged to be larger as much as possible, so that in the sewage entering the sedimentation tank 6 of the sealed U-shaped buckle cover 1, the resistance of the sewage to the sealed U-shaped buckle cover 1 is smaller, the movement of the sealed U-shaped buckle cover 1 in the sewage entering or in the sewage can be effectively reduced, the sedimented sludge is stirred, the sedimentation affecting the sludge is placed, a spring reset piece 18 is arranged between the outer end of the U-shaped sealed buckle cover 16 and the outer end of the sealed U-shaped buckle cover 1, the spring reset piece 18 is arranged on the U-shaped sealed buckle cover 16 between the two rows of the upper water through holes 17, and a sealed guide plate 19 is arranged at the inner end of the U-shaped sealed buckle cover 16, as shown in fig. 1, the sealing guide plate 19 is composed of three strips, the upper strip and the lower strip are arranged in parallel, the middle inclined plate is arranged in an inward inclined manner to connect the upper strip and the lower strip, and the lower end surface of the vertically arranged lower strip is connected to the inner end of the U-shaped sealing buckle cover 16; an extrusion wheel disc 20 is arranged at the lower end part of the telescopic rotating shaft 5, when the extrusion wheel disc 20 moves downwards, the extrusion wheel disc 20 moves to the position corresponding to the lower lath from the position corresponding to the upper lath of the sealing guide plate 19, so that the sealing guide plate 19 is extruded to expand outwards, the sealing guide plate 19 moves outwards, the U-shaped sealing buckle cover 16 is driven to move outwards, the lower water through hole 15 on the sealing U-shaped buckle cover 16 is staggered with the upper water through hole 17 on the U-shaped sealing buckle cover 16, the lower water through hole 15 on the sealing U-shaped buckle cover 1 is sealed, when the extrusion wheel disc 20 moves upwards, the U-shaped sealing buckle cover 16 is reset under the action of the spring resetting piece 18, and the lower water through hole 17 is aligned with the upper water through hole 15.
The walking frame device is also provided with a suction pump 21, the suction pump 21 is led into the sealing U-shaped buckle cover 1 through a suction pipeline 22, a suction port of the suction pipeline 21 is arranged on a stirring brush support 9 corresponding to the stirring brush 3, the suction pipeline 22 in the sealing U-shaped buckle cover 1 is hung on the bidirectional screw rod 8 through a plurality of hooks for placing and winding. The slurry pumped by the suction pump 21 can be connected directly to the slurry dewatering device.
The invention relates to a method for removing sludge in a sedimentation tank in sewage treatment, which adopts a sealing U-shaped buckle cover 1 which can be controlled to be opened and closed, controls the sealing U-shaped buckle cover 1 to be sent to the bottom of a specified sedimentation tank 6 through a walking frame device and a buckle cover lifting device, seals the precipitated sludge at the bottom of the sedimentation tank 6 in the sealing U-shaped buckle cover 1, scrapes off the sludge at the bottom of the sedimentation tank 6 through a mud scraper 2, enables the sludge to be formed into mud under the stirring of a stirring brush 3, continuously pumps out the mud through a suction pump 21 while scraping and stirring, subsequently dehydrates the mud, removes the precipitated sludge at the bottom of the sedimentation tank 6, and continuously circularly removes the precipitated sludge by transferring the sealing U-shaped buckle cover 1 to a place which is not removed through the walking frame device and the buckle cover lifting device.
The invention relates to a method for removing sludge in a sedimentation tank in sewage treatment, the settled sludge at the bottom of the sedimentation tank 6 is sealed in a sealed U-shaped buckle cover 1, a bidirectional screw 8 continuously rotates to drive a sludge scraper 2 and a stirring brush 3 to work, because a relatively sealed space is formed in the sealed U-shaped buckle cover 1, if other sludge scraping and stirring modes are adopted, slurry is continuously pumped out by using a suction pump 21, negative pressure is certainly formed in the sealed U-shaped buckle cover 1, the sealed U-shaped buckle cover 1 cannot form absolute seal, water outside the sealed U-shaped buckle cover 1 can constantly flow into the sealed U-shaped buckle cover 1, thus the slurry in the sealed U-shaped buckle cover 1 cannot be pumped out, the design that the sludge scrapers 2 are sealed at two ends of the sealed U-shaped buckle cover 1 is adopted, the sludge scrapers 2 at two sides are continuously closed in the suction process of the suction pump 21, therefore, the pressure intensity in the sealing U-shaped buckle cover 1 is always consistent with that outside the sealing U-shaped buckle cover 1 due to the synchronous compensation of the movement of the mud scraper 2 and the pressure difference formed by the suction of the suction pump 21, so that the circulation inside and outside the sealing U-shaped buckle cover 1 is reduced as much as possible, and the high-efficiency and high-quality sludge removal is ensured.
As shown in fig. 1-8, when sludge in a sedimentation tank 6 is removed, a sludge removing device is installed above the sedimentation tank 6, a sealing U-shaped buckle cover 1 is moved to the position of the sedimentation tank 6 where sludge needs to be removed by controlling a walking frame device, the sealing U-shaped buckle cover 1 is hung above the sedimentation tank 6, two sludge scrapers 2 are positioned at two ends of a bidirectional screw 8, an extrusion wheel disc 20 corresponds to the position of an upper strip plate of a sealing guide plate 19, a lower water through hole 17 and an upper water through hole 15 are aligned, a buckle cover lifting device is controlled to make the sealing U-shaped buckle cover 1 vertically fall, the sealing U-shaped buckle cover 1 is buckled at the bottom of the sedimentation tank 6, and the bottom end surface of the sealing U-shaped buckle cover 1 and the blade surface of the sludge scrapers 2 are attached and sealed on the bottom of the tank as much as possible; then the mud scraping driving motor 4 is started, the mud scraping driving motor 4 drives the telescopic rotating shaft 5 to rotate, as the bottom end of the telescopic rotating shaft 5 is in threaded connection with the motor umbrella teeth 13, when the telescopic rotating shaft 5 rotates, the motor umbrella teeth 13 cannot be immediately and synchronously driven to rotate, so that the precipitated mud in the sealed U-shaped buckle cover 1 can be prevented from being stirred before the sealed U-shaped buckle cover 1 is sealed, the rotation of the telescopic rotating shaft 5 firstly drives the extrusion wheel disc 20 to move downwards, the extrusion wheel disc 20 moves downwards to enable the two U-shaped sealed buckle covers 16 on the sealed U-shaped buckle cover 1 to expand outwards, the lower water through hole 15 on the sealed U-shaped buckle cover 16 is staggered with the upper water through hole 17 on the U-shaped sealed buckle cover 16, the lower water through hole 15 on the sealed U-shaped buckle cover 1 is sealed, and after the lower water through hole 15 on the sealed U-shaped buckle cover 1 is sealed, the telescopic rotating shaft 5 continues to rotate, the bottom of the telescopic rotating shaft 5 is screwed with the motor bevel gear 13, the motor bevel gear 13 is synchronously driven to rotate, the bidirectional screw rod 8 rotates to drive the mud scraping knives 2 and the stirring brushes 3 to work, the suction pump 21 is started to suck mud, and according to setting, when the two mud scraping knives 2 are closed, the clearing of the sludge precipitated in the sealed U-shaped buckle cover 1 is finished.
Then the mud scraping driving motor 4 is started to rotate reversely for a period of time, the lower water through hole 15 on the sealing U-shaped buckle cover 1 is opened in a sealing mode, the mud scraping knife 2 is reset to run to the two end portions of the bidirectional screw 8, the sealing U-shaped buckle cover 1 is lifted up by controlling the buckle cover lifting device, the sealing U-shaped buckle cover 1 is completely separated from the sewage surface, then the sealing U-shaped buckle cover 1 is moved to the position, close to the next sedimentation tank 6 where sludge needs to be removed, by controlling the walking frame device, and the sludge is removed through circular starting.
Example 2
As shown in fig. 1 to 8, in the method for removing sludge in a sedimentation tank in sewage treatment according to the present invention, a scum removing function is added to embodiment 1, and a scum baffle 23 is hung on one side of the walking frame device, and the scum baffle 23 is attached to an outer wall of one side of the sealing U-shaped buckle cover 1. Dross baffle 23 inserts and establishes keeping apart dross in sewage in one side, in sealed U type buckle closure 1 drops to get into sewage like this, can cover the dross that dross baffle 23 one side was compiled in sealed U type buckle closure 1, and during subsequent suction mud, the dross is cleared away with mud a by the suction, and walking frame device constantly drives dross baffle 23 and removes to 6 one directions in sedimentation tank, and the dross will constantly be covered follow-up being taken away by sealed U type buckle closure 1 like this, be equipped with the filter screen on the limbers 15 down. The filter screen is provided to prevent the dross from flowing out of the lower water through hole 15.
Example 3
As shown in fig. 1-8, the invention relates to a method for removing sludge in a sedimentation tank in sewage treatment, based on the above embodiment, the walking frame device comprises a walking motor 24, pulleys 25 and support shafts 26, a guide rail 27 is laid on the edge of the sedimentation tank 6, at least two support shafts 26 are arranged on the sedimentation tank 6, the pulleys 25 are arranged at two ends of the support shafts 26, the pulleys 25 are arranged on the guide rail 27 in a sliding manner, the support shafts 26 are connected and fixed by a connecting rod, the walking motor 24 is in transmission connection with at least one pulley 25 through a transmission chain, and the walking frame device is driven by the walking motor 24 to move on the guide rail 27. The walking frame device is a supporting walking frame, and the walking frame is controlled to move on the set guide rail 27 by controlling the walking motor 24.
Example 4
As shown in fig. 1 to 8, the present invention relates to a method for removing sludge in a settling tank in sewage treatment, on the basis of the above embodiment, the buckle cover lifting device comprises lifting screws 7, lifting screw cylinders 28, lifting longitudinal shafts 29, lifting transverse shafts 30 and lifting motors 31, the lower ends of the four lifting screws 7 are connected to four angular positions of the sealed U-shaped buckle cover 1, each lifting screw 7 is connected with one lifting screw cylinder 28, the upper end part of the lifting screw cylinder 28 is provided with a worm gear 32, the lower end part of the lifting screw cylinder 28 is arranged on the walking frame device through a bearing, two lifting screw cylinders 28 which are longitudinally corresponding are in transmission connection through a lifting longitudinal shaft 29, two ends of the lifting longitudinal shaft 29 are provided with worms which are in meshing transmission with the worm gear 32 on the lifting screw cylinder 28, two ends of a lifting transverse shaft 30 are respectively in transmission connection with the corresponding lifting longitudinal shaft 29 through a pair of umbrella teeth, and the middle part of the lifting transverse shaft 30 is in transmission connection with a lifting motor 31 arranged on the walking frame device through a pair of umbrella teeth.
In the embodiment, the buckle closure lifting device adopts a worm and worm wheel transmission mode, has a self-locking function when the sealed U-shaped buckle closure 1 is sealed at the bottom of the sedimentation tank 6, and is placed to be opened; the pair of lifting screws 7 and the lifting screw cylinder 28 are arranged in a thread matching way.
Example 5
As shown in fig. 1-8, in the method for removing sludge in a sedimentation tank in sewage treatment of the present invention, on the basis of the above embodiment, the bottom ends of the front and rear cover plates of the sealing U-shaped cover 1 are provided with the folded edge 33, a folded edge groove is formed between the folded edge 33 and the cover plate, the front and rear cover plates of the U-shaped sealing cover 16 are inserted into the folded edge groove to slide, the folded edge 33 is provided with a plurality of limiting sliding grooves 34, and the U-shaped sealing cover 16 corresponding to the limiting sliding grooves 34 is provided with the limiting sliding blocks 35.
In this embodiment, the structure of the folded edge 33 is mainly provided for limiting the U-shaped sealing cover 16, so that the U-shaped sealing cover 16 moves closely to the outer wall of the sealing U-shaped cover 1, and the limiting sliding groove 34 and the limiting sliding block 35 are also used for tightly matching the U-shaped sealing cover 16 with the sealing U-shaped cover 1.
Example 6
As shown in fig. 1-8, in the method for removing sludge in a sedimentation tank in sewage treatment according to the present invention, based on the above embodiment, the telescopic rotating shaft 5 includes an upper spline shaft 36, a spline housing 37, and a lower spline shaft 38, the upper end of the upper spline shaft 36 is connected to the rotating shaft of the sludge scraping drive motor 4, the lower end of the upper spline shaft 36 is inserted into the spline housing 37, the upper end of the lower spline shaft 38 is inserted into the spline housing 37, the lower end of the lower spline shaft 38 is screwed onto the motor umbrella teeth 13, the upper end of the motor umbrella teeth 13 is provided with a connecting screw hole inside, the spline housing 37 is provided with a strip groove, and the ends of the upper spline shaft 36 and the lower spline shaft 38 corresponding to the strip groove are provided with an anti-falling stopper pin 39. The upper spline shaft 36 and the lower spline shaft 38 are capable of axially extending and contracting in the spline housing 37 and synchronously rotating during rotation, and the upper spline shaft 36, the spline housing 37 and the lower spline shaft 38 are connected and separated by the strip grooves and the anti-dropping stop pins 39.
The lower end of the lower spline shaft 38 is provided with a telescopic hole 40, a limiting rod 41 is axially inserted into the motor bevel gear 13, the upper end of the limiting rod 41 is inserted into the telescopic hole 40, and the upper end of the limiting rod 41 is provided with a limiting head 42. The limiting rod 41 is mainly used for limiting the connection between the telescopic rotating shaft 5 and the motor bevel gear 13, so that the threaded joint of the lower spline shaft 38 cannot fall off from the threaded shaft barrel of the motor bevel gear 13.
The invention is provided with a telescopic rotating shaft 5, and an extrusion wheel disc 20 for controlling the sealing and opening of the sealing U-shaped buckle cover 1 is arranged on the telescopic rotating shaft 5, because the working environment of the sealing U-shaped buckle cover 1, the mud scraper 2 and the stirring brush 3 is underwater for a long time, the sealing and opening of the sealing U-shaped buckle cover 1 are driven for safety, and the control and operation of the mud scraper 2 and the stirring brush 3 can not be directly linked with a motor or other kinetic energy equipment, the invention adopts remote transmission, and because a plurality of driving parts are required, and the sealing U-shaped buckle cover 1, the mud scraper 2 and the stirring brush 3 can not be relatively fixed relative to the driving equipment, the invention creatively adopts the structural design of the telescopic rotating shaft 5, realizes the sealing and opening of the sealing U-shaped buckle cover 1 by the driving of a mud scraping driving motor 4, realizes the mud scraping operation of the mud scraper 2, and realizes the mud stirring operation of the stirring brush 3, thereby reducing the complex structure of the equipment and realizing the installation function.
Example 7
As shown in fig. 1-8, the method for removing sludge in a sedimentation tank in sewage treatment according to the present invention is based on the above embodiments 1-6, and further comprises a controller (not shown in the drawings), wherein the walking motor 24, the mud scraping driving motor 4, the lifting motor 31 and the suction pump 21 are all connected to the controller. Through setting up the controller, can realize automatic control in whole journey, according to setting for each motor of control and suction pump according to setting for the circulation work.
The invention successfully solves the problem that the existing treatment mode of the precipitated sludge is carried out under the condition of discharging clear water on the upper layer of the precipitation tank, so that the sewage treatment tank is always in the process of removing the sludge, the precipitation tank cannot be used for precipitating the sludge in real time, and the use efficiency of the precipitation tank is seriously influenced. In addition, in the sedimentation tank, a process for treating floating slag of sewage is also provided, which is a problem that the fishing is carried out by using a strainer manually, and the labor and the time are wasted. Therefore, the sedimentation tank 6 can continuously realize the function of sludge sedimentation, and the sewage treatment efficiency of the sewage plant is improved.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (9)
1. A method for removing sludge in a sedimentation tank in sewage treatment is characterized in that:
step 1, erecting a walking frame device above a sedimentation tank (6), arranging a buckle cover lifting device on the walking frame device, connecting four lifting screws (7) on the buckle cover lifting device with a sealed U-shaped buckle cover (1), and controlling the sealed U-shaped buckle cover (1) to lift in the sedimentation tank (6) through the buckle cover lifting device; the scum is sealed in the inner cover of the U-shaped buckle cover (1) and then is pumped out in the descending process of the sealed U-shaped buckle cover (1) in the sedimentation tank (6);
step 2, a bidirectional screw rod (8) is transversely hung in the sealed U-shaped buckle cover (1), two ends of the bidirectional screw rod (8) are provided with opposite threads, the screw rods at the two ends of the bidirectional screw rod (8) are provided with spline grooves, the two ends of the bidirectional screw rod (8) are respectively in threaded connection with a mud scraper (2), the end face of the mud scraper (2) is in sliding sealing connection with the joint of the inner wall of the sealed U-shaped buckle cover (1), a stirring brush support (9) is arranged on the inner side of the mud scraper (2), a stirring brush rotating rod (10) is vertically arranged on the stirring brush support (9), a stirring brush (3) is arranged at the lower end of the stirring brush rotating rod (10), rotating rod umbrella teeth (11) are arranged at the upper end of the stirring brush rotating rod (10), spline cylinder bevel gears (12) are slidably sleeved on the bidirectional screw rod (8) corresponding to the rotating rod bevel gears (11), and the rotating rod bevel gears (11) are in meshing transmission with the spline cylinder bevel gears (12);
step 3, a mud scraping driving motor (4) is arranged in the middle of the walking frame device, a telescopic rotating shaft (5) is connected to a rotating shaft of the mud scraping driving motor (4), motor bevel gears (13) are connected to the bottom end of the telescopic rotating shaft (5) in a threaded mode, screw rod bevel gears (14) are fixedly sleeved in the middle of a bidirectional screw rod (8), and the motor bevel gears (13) are in transmission connection with the screw rod bevel gears (14);
step 4, lower water through holes (15) are formed in three side cover plates at two end portions of the sealed U-shaped buckle cover (1), U-shaped sealed buckle covers (16) are buckled on the two end portions of the sealed U-shaped buckle cover (1) respectively, an upper water through hole (17) corresponding to the lower water through hole (15) is formed in each U-shaped sealed buckle cover (16), a spring reset piece (18) is arranged between the outer end of each U-shaped sealed buckle cover (16) and the outer end of each sealed U-shaped buckle cover (1), and a sealed guide plate (19) is arranged at the inner end of each U-shaped sealed buckle cover (16); an extrusion wheel disc (20) is arranged at the lower end part of the telescopic rotating shaft (5);
step 5, a suction pump (21) is further arranged on the walking frame device, the suction pump (21) is led into the sealed U-shaped buckle cover (1) through a suction pipeline (22), and a suction opening of the suction pipeline (22) is formed in a stirring brush support (9) corresponding to the stirring brush (3);
step 6, controlling a walking frame device to enable a sealing U-shaped buckle cover (1) to move to a position of a sedimentation tank (6) needing to remove sludge, enabling a lower water through hole (17) and an upper water through hole (15) to be in an aligned state, controlling a buckle cover lifting device to enable the sealing U-shaped buckle cover (1) to vertically fall, enabling the sealing U-shaped buckle cover (1) to be buckled at the bottom of the sedimentation tank (6), then starting a mud scraping driving motor (4), enabling the mud scraping driving motor (4) to drive a telescopic rotating shaft (5) to rotate, enabling the telescopic rotating shaft (5) to firstly drive an extrusion wheel disc (20) to move downwards, enabling the extrusion wheel disc (20) to move downwards to extrude a sealing guide plate (19), enabling two U-shaped sealing buckle covers (16) on the sealing U-shaped buckle cover (1) to outwards expand, and enabling the lower water through hole (15) on the sealing U-shaped buckle cover (16) and the upper water through hole (17) on the U-shaped sealing buckle cover (16) to be staggered, thereby make lower limbers (15) on the sealed U type buckle closure (1) sealed, flexible pivot (5) continue to rotate, the bottom of flexible pivot (5) is screwed with motor bevel gear (13), will drive motor bevel gear (13) rotation in step, and then two-way lead screw (8) rotate and drive mud scraper (2) and mix brush (3) work, start suction pump (21) suction mud simultaneously, according to setting for, when two mud scraper (2) draw close, accomplished the clearance that makes sediment mud in the sealed U type buckle closure (1) promptly.
2. The method of claim 1, wherein the method comprises the steps of: the method comprises the following steps of 7, after the removal of the precipitated sludge in the sealed U-shaped buckle cover (1) is completed, starting a sludge scraping driving motor (4) to rotate reversely for a period of time, sealing and opening a lower water through hole (15) in the sealed U-shaped buckle cover (1), resetting a sludge scraping knife (2) to move to two ends of a bidirectional screw rod (8), lifting the sealed U-shaped buckle cover (1) by controlling a buckle cover lifting device, leaving the sealed U-shaped buckle cover (1) away from a sewage surface, controlling a walking frame device to move the sealed U-shaped buckle cover (1) to the next position adjacent to a sedimentation tank (6) needing to remove the sludge, and circularly starting and removing the sludge.
3. The method of claim 1, wherein the method comprises the steps of: a scum baffle (23) is hung on one side of the walking frame device, and the scum baffle (23) is attached to the outer wall of one side of the sealed U-shaped buckle cover (1).
4. The method of claim 1, wherein the method comprises the steps of: the walking frame device comprises a walking motor (24), pulleys (25) and supporting shafts (26), guide rails (27) are paved on the edges of the sedimentation tank (6), at least two supporting shafts (26) are erected on the sedimentation tank (6), the pulleys (25) are arranged at the two ends of each supporting shaft (26), the pulleys (25) are arranged on the guide rails (27) in a sliding mode, the supporting shafts (26) are fixedly connected through connecting rods, the walking motor (24) is in transmission connection with at least one pulley (25) through a transmission chain, and the walking frame device is driven to move on the guide rails (27) through the walking motor (24).
5. The method of claim 4, wherein the method comprises: the buckle cover lifting device comprises lifting screw rods (7), lifting screw cylinders (28), lifting longitudinal shafts (29), lifting transverse shafts (30) and lifting motors (31), the lower ends of the four lifting screw rods (7) are connected to the four corners of the sealed U-shaped buckle cover (1), each lifting screw rod (7) is connected with one lifting screw cylinder (28), the lifting device is characterized in that a worm gear (32) is arranged at the upper end of each lifting screw cylinder (28), the lower end of each lifting screw cylinder (28) is installed on the walking frame device through a bearing, two lifting screw cylinders (28) which are longitudinally corresponding are in transmission connection through a lifting longitudinal shaft (29), worms in meshing transmission with the worm gears (32) on the lifting screw cylinders (28) are arranged at the two ends of each lifting longitudinal shaft (29), the two ends of one lifting transverse shaft (30) are in transmission connection with the corresponding lifting longitudinal shafts (29) through a pair of umbrella teeth, and the middle of each lifting transverse shaft (30) is in transmission connection with a lifting motor (31) arranged on the walking frame device through a pair of umbrella teeth.
6. The method of claim 1, wherein the method comprises the steps of: the bottom of the cover plates on the front side and the rear side of the sealed U-shaped buckle cover (1) are provided with folding edges (33), a folding edge groove is formed between the folding edges (33) and the cover plates, the cover plates on the front side and the rear side of the U-shaped sealed buckle cover (16) are inserted into the folding edge groove to slide, a plurality of limiting sliding grooves (34) are formed in the folding edges (33), and limiting sliding blocks (35) are arranged on the U-shaped sealed buckle cover (16) corresponding to the limiting sliding grooves (34).
7. The method of claim 1, wherein the method comprises the steps of: flexible pivot (5) are including last integral key shaft (36), spline housing (37), spline shaft (38) down, go up spline shaft (36) upper end and scrape the rotation axis connection of mud driving motor (4), go up spline shaft (36) lower extreme and insert and establish in spline housing (37), spline shaft (38) upper end is inserted and is established in spline housing (37) down, spline shaft (38) lower extreme threaded connection is on motor umbrella tooth (13) down, the strip groove has been seted up on spline housing (37), last spline shaft (36) and lower spline shaft (38) end that the strip groove corresponds all are equipped with anticreep backing pin (39).
8. The method of claim 7, wherein the method comprises: the lower end of the lower spline shaft (38) is provided with a telescopic hole (40), a limiting rod (41) is axially inserted in the motor bevel gear (13), the upper end of the limiting rod (41) is inserted in the telescopic hole (40), and the upper end of the limiting rod (41) is provided with a limiting head (42).
9. The method of claim 4, wherein the method comprises: the mud scraper is characterized in that a controller is further arranged, and the walking motor (24), the mud scraping driving motor (4), the lifting motor (31) and the suction pump (21) are all in control connection with the controller.
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| CN112028413A (en) * | 2020-10-02 | 2020-12-04 | 杭州兴洋环保科技有限公司 | High total nitrogen effluent treatment plant |
| CN112240422B (en) * | 2020-10-15 | 2022-12-09 | 开平市亿展阀芯有限公司 | Opening and closing method of valve |
| CN112240421B (en) * | 2020-10-15 | 2022-11-25 | 陕西亿昊科技发展有限公司 | Safety valve device |
| CN112707619B (en) * | 2020-12-28 | 2022-08-30 | 安徽省元进金元钙业有限公司 | Slurry treatment system in limestone washing process |
| CN113323079B (en) * | 2021-05-31 | 2022-05-03 | 中国水利水电科学研究院 | High-quality miscellaneous drainage treatment recycling device for residential area |
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| JP4766415B2 (en) * | 2001-09-26 | 2011-09-07 | 虎男 井上 | A mud pump that moves the mud openings. |
| CN202237411U (en) * | 2011-08-29 | 2012-05-30 | 杭州远山食品科技有限公司 | Sludge scraping and sucking device for sedimentation tank |
| CN203090541U (en) * | 2013-03-26 | 2013-07-31 | 成都源创环保工程有限公司 | Wastewater treatment sedimentation tank |
| CN104174221B (en) * | 2014-09-04 | 2016-06-01 | 南阳鑫子源石油石化技术装备有限公司 | Rotary drum pressure mud system |
| KR101698870B1 (en) * | 2016-02-03 | 2017-01-24 | (주)천둥 | A Sludge Collecting Device and Control Method thereof |
| CN207085426U (en) * | 2017-07-31 | 2018-03-13 | 南京圆点环境清洁技术有限公司 | A kind for the treatment of tank bottom of pond mud-scraping apparatus |
| CN110980977A (en) * | 2019-12-19 | 2020-04-10 | *** | Aeration equipment convenient to clearance silt |
| CN110818051B (en) * | 2019-12-19 | 2020-09-01 | 赣州齐畅新材料有限公司 | Sedimentation type sewage purification device and purification method thereof |
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