CN108479123B - Inclined tube cleaning device of efficient sedimentation tank - Google Patents
Inclined tube cleaning device of efficient sedimentation tank Download PDFInfo
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- CN108479123B CN108479123B CN201810414994.XA CN201810414994A CN108479123B CN 108479123 B CN108479123 B CN 108479123B CN 201810414994 A CN201810414994 A CN 201810414994A CN 108479123 B CN108479123 B CN 108479123B
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- flushing pipe
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- 238000004062 sedimentation Methods 0.000 title claims abstract description 28
- 238000004140 cleaning Methods 0.000 title claims abstract description 24
- 238000011010 flushing procedure Methods 0.000 claims abstract description 175
- 238000007789 sealing Methods 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 claims description 11
- 230000005540 biological transmission Effects 0.000 claims description 9
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 239000010865 sewage Substances 0.000 abstract description 7
- 210000005056 cell body Anatomy 0.000 abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 34
- 239000000203 mixture Substances 0.000 description 12
- 230000008569 process Effects 0.000 description 9
- 230000009471 action Effects 0.000 description 7
- 239000010802 sludge Substances 0.000 description 7
- 238000009826 distribution Methods 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 4
- 238000007790 scraping Methods 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- 230000001174 ascending effect Effects 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000008929 regeneration Effects 0.000 description 2
- 238000011069 regeneration method Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 238000005201 scrubbing Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 241000195493 Cryptophyta Species 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 239000004699 Ultra-high molecular weight polyethylene Substances 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 229920000785 ultra high molecular weight polyethylene Polymers 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Classifications
-
- 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
- B01D21/0006—Settling tanks provided with means for cleaning and maintenance
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Cleaning In General (AREA)
Abstract
The invention discloses an inclined tube cleaning device of a high-efficiency sedimentation tank, which comprises a tank body, a mud scraper central shaft and an inclined tube, wherein the mud scraper central shaft and the inclined tube are arranged in the tank body, and the mud scraper is arranged at the bottom of the tank body; the mud scraper center pin is tubular structure, is provided with main gas outlet on the lateral wall of mud scraper center pin, the below level of inclined tube is provided with main flushing pipe, main flushing pipe top distributes has one row of main fumarole, and main flushing pipe's one end and main gas outlet sealing connection, and other end swing joint is provided with secondary flushing pipe, is provided with one row of secondary fumarole on the secondary flushing pipe, and during operation, the terminal of secondary flushing pipe is leaned on and is pressed on the cell body inner wall. The invention can realize non-stop cleaning of the inclined tube, has wide cleaning coverage, no dead angle, and completes the primary and secondary flushing gas paths independently and successively, thereby reducing the flow of flushing gas sources. Can be widely applied to the field of cleaning of high-efficiency sedimentation tanks for sewage treatment.
Description
Technical Field
The invention relates to the technical field of sewage upgrading, in particular to an inclined tube cleaning device of a high-efficiency sedimentation tank.
Background
In recent years, in the field of sewage treatment, especially sewage upgrading, the high-efficiency (or high-density) sedimentation tank is widely used because of the advantages of large treatment capacity, strong shock resistance, stable operation and the like, and inclined pipes uniformly distributed on the upper part of the rectangular water outlet tank are necessary configuration of the high-efficiency sedimentation tank.
However, in the present situation, the inclined tube in the efficient sedimentation tank is blocked when the overflow area of the inclined tube is reduced and serious due to the growth of sludge particles and algae and the attachment of biological membranes after the efficient sedimentation tank is used for a period of time, so that the inclined tube flushing device is required to be configured.
The common inclined tube flushing device is currently known, and a flushing water pump, a water pipe and a spray head are adopted for regular manual movement flushing. The following problems are common:
1. when flushing, the water is stopped firstly, and the sewage is discharged in a bypass mode when the sewage does not reach the standard during flushing;
2. the water above the lower plane of the inclined tube needs to be drained.
3. The water pump is required to be started manually, and the washing spray gun is held by a human hand to sequentially wash out one inclined tube hole.
4. The labor intensity is high and the flushing time is long.
At present, a fixed inclined tube flushing device which is used in a small amount is known, namely, fixed flushing tubes which are distributed at intervals are arranged below the inclined tube, electromagnetic valves or electric valves are arranged on each (group of) flushing tube, a flushing water pump or a fan is started during flushing, the flushing valves are sequentially opened, and other valves are closed at the same time, so that the flushing device has the following problems:
1. When the interval between the fixed flushing pipes is larger, flushing blind areas or uneven flushing can be caused;
2. Fixing the flush tube at small intervals increases the cost of the flush facility;
3. the electric flushing valve is provided with a plurality of flushing pipelines, a plurality of electric flushing valves, a plurality of control objects and a plurality of fault points, and the manufacturing and maintenance cost is high;
4. The flushing strength is uneven and the flushing energy consumption is high.
5. The flushing pipes arranged horizontally below the inclined pipes occupy more space and can accumulate mud.
For example, chinese patent application No. 201620047974.X discloses a gas-wash sedimentation tank for inclined tube sedimentation, comprising a tank body, a mud scraper driving mechanism, a gas cleaning device and a rotary mud scraping mechanism; the mud scraper driving mechanism comprises a motor and a speed reducer; the gas cleaning equipment comprises a hollow rotating central shaft, a perforated gas distribution pipe horizontally arranged at the lower end of the rotating central shaft, a gas source main pipe connected at the upper end of the rotating central shaft through a rotating joint and a control valve at the end part of the gas source main pipe; the rotary mud scraping mechanism comprises a scraping arm, a scraping plate, an inclined pipe arranged on the inner side of the tank body and a water outlet weir. The structure can remove deposited sludge on the surface of the inclined tube under the condition of no shutdown, but the applicant considers that the structure still has a certain cleaning dead angle, the occupied area of the perforated gas distribution tube is large, the position of the gas distribution tube is too low, the position of the gas distribution tube is close to a mud layer below, the mud layer can be disturbed to be unfavorable for sludge precipitation during flushing, the effective utilization of a sedimentation tank is unfavorable, and meanwhile, the air pressure and the energy consumption of a fan are increased, and the cost is increased.
Disclosure of Invention
In order to solve the technical problems, the invention provides an inclined tube cleaning device of a high-efficiency sedimentation tank.
The technical scheme adopted for solving the technical problems is as follows: the inclined tube cleaning device of the high-efficiency sedimentation tank comprises a tank body, a mud scraper central shaft and an inclined tube which are arranged in the tank body, and a mud scraper arranged at the bottom of the tank body; the mud scraper center pin is tubular structure, is provided with main gas outlet on the lateral wall of mud scraper center pin, the below level of inclined tube is provided with main flushing pipe, main flushing pipe top distributes has one row of main fumarole, and main flushing pipe's one end and main gas outlet sealing connection, and other end swing joint is provided with secondary flushing pipe, is provided with one row of secondary fumarole on the secondary flushing pipe, and during operation, the terminal of secondary flushing pipe is leaned on and is pressed on the cell body inner wall.
For guaranteeing the reliability of secondary flushing pipe operation, be provided with U type tubular hinge between main flushing pipe and the secondary flushing pipe, one side and main flushing pipe flange fixed connection of U type tubular hinge, the equipartition has a set of venthole on the opposite side pipe wall of U type tubular hinge, and the outside cover that U type tubular hinge is located the venthole is equipped with the sleeve pipe, be provided with the axle sleeve between sleeve pipe and the U type tubular hinge, the upper end of U type tubular hinge is provided with the hookup apron, the sleeve pipe be provided with the secondary gas outlet of secondary flushing pipe.
In order to ensure that the secondary flushing pipe can smoothly flush the inclined pipe at the corner during operation, the secondary air injection holes are formed in the inner side wall, close to the center of the tank body, of the secondary flushing pipe.
In order to ensure the smoothness of the operation of the secondary flushing pipe during operation, the tail end of the secondary flushing pipe is provided with a roller which horizontally rolls.
In order to ensure the stability of the cantilever structure of the main flushing pipe, the central shaft of the mud scraper is also symmetrically and fixedly provided with a supporting rod, the supporting rod and the main flushing pipe are positioned on the same plane and are mutually perpendicular, two diagonal draw bars are arranged between the supporting rod and the main flushing pipe, and the two diagonal draw bars are symmetrically arranged relative to the main flushing pipe.
Further, a connecting rod is arranged between the main flushing pipe and the mud scraper positioned below.
For the independent work of convenient control main flushing pipe and secondary flushing pipe, be provided with the secondary in the main flushing pipe and wash the xarm intraductal gas-supply pipe, be provided with the secondary in the mud scraper center pin and wash the xarm intraductal gas-supply pipe of gas-supply being connected with the secondary, the other end and the U type tubular hinged joint of secondary in the flushing xarm intraductal gas-supply pipe, the inlet end connection of secondary washing gas-supply riser is provided with the secondary and washes the gas-supply pipe, the inlet end connection of mud scraper center pin is provided with the main gas-supply pipe that washes. The secondary flushing gas pipe and the main flushing gas pipe are connected with a two-position three-way electromagnetic valve at the gas inlet end, and a blower is connected with the two-position three-way electromagnetic valve.
The invention has the beneficial effects that: the main flushing pipe and the secondary flushing pipe in the invention carry out scanning flushing, low-pressure air with large flow rate is sprayed out from the air spraying holes at high speed against the pressure of water depth, and the air rapidly goes up to the lower part of the inclined pipe and goes up along the inclined pipe, reaches the upper part of the inclined pipe and goes up to the water surface to enter the air. In the upward process of the air flow, a large amount of continuous air is continuously combined with water to form a large amount of water-air mixture with dense bubbles, the density of the mixture is obviously lower than that of water which does not pass through nearby air flows, the mixture floats rapidly under the buoyancy effect of nearby water, and the flushing of the inclined pipe in the flow-through area is realized by the aid of the main flushing pipe which slowly rotates along with the mud scraper, after the air spraying pipe rotates for a certain angle, the original area does not have air flow any more, the water-air mixture which rises to the upper end of the inclined pipe and is higher than the water surface rises, the water after the air is separated out rapidly falls under the action of dead weight, and the flushing of the inclined pipe in the flow-through area is realized in the vibration process of rising and falling of the large amount of water-air mixture, and more importantly: in the ascending process of the water-gas mixture, a large amount of bubbles are sprayed and destroyed on the wall surface of the inclined tube, new bubbles are regenerated, continuous flushing vibration and scrubbing are generated on the wall surface of the inclined tube in the bubble destruction and regeneration process, so that sludge particles adhered to the wall surface of the inclined tube are unstable and fall down under the action of dead weight to reach the sludge surface of the sedimentation tank, and the inclined tube is effectively cleaned. The structure that adopts main wash pipe and secondary wash pipe to combine, secondary wash pipe can reach the bight region of cell body to cover whole cell body, coverage area is wide, does not have the dead angle. The main flushing pipe and the secondary flushing pipe are separated and independently cleaned, so that the power of the blower can be effectively reduced, and the flushing strength is high. The main flushing pipe and the secondary flushing pipe are simple in structure and small in occupied space. The diagonal draw bar and the connecting rod can ensure the stability of the main flushing pipe. The roller can reduce the resistance between the secondary flushing pipe and the tank body, and ensure the operation of the secondary flushing pipe. In addition, the invention does not need to increase a flushing water source and medicament, and does not produce secondary pollution to the water body; the whole flushing process does not need to stop water, does not need to move the inclined plate (pipe), does not increase occupied area and saves manpower; the flushing can be realized regularly and automatically in the normal operation of the sedimentation tank, and the clean wall surface of the inclined tube is ensured. The flushing period and the flushing strength are convenient to adjust, and the effective flushing can be realized under the state of not damaging the inclined tube.
The invention will be described in more detail below with reference to the drawings and examples.
Drawings
Fig. 1 is a schematic structural view of the present invention.
FIG. 2 is a cross-sectional view of A-A in the present invention.
FIG. 3 is a schematic illustration of the fit of the U-shaped tube hinge of the present invention.
FIG. 4 is a schematic view of the structure of the U-shaped tubular hinge of the present invention with torsion springs.
Detailed Description
Example 1:
As shown in fig. 1 to 3, an inclined tube cleaning device of a high-efficiency sedimentation tank comprises a tank body 20, wherein the tank body 20 is of a rectangular or other polygonal structure. The upper part of the tank body 20 is distributed with an inclined tube 17, the center of the tank body 20 is provided with a mud scraper central shaft 6, the upper end of the mud scraper central shaft 6 is connected with a mud scraper driving machine case 18, the bottom of the tank body 20 is provided with a mud scraper 21, and the mud scraper driving machine case 18 drives the mud scraper 21 to rotate through the mud scraper central shaft 6. The central shaft 6 of the mud scraper is of a tubular structure and is used as a main flushing gas transmission vertical pipe, a main gas outlet 601 is formed in the side wall of the central shaft 6 of the mud scraper, a main flushing pipe 8 is horizontally arranged below the inclined pipe 17, a row of main gas spraying holes 801 are distributed above the main flushing pipe 8, and one end of the main flushing pipe 8 is in sealing connection with the main gas outlet 601 through a connecting flange. The central shaft 6 of the mud scraper is also symmetrically and fixedly provided with a stay bar 14, the stay bar 14 and the main flushing pipe 8 are positioned on the same plane and are mutually perpendicular, two diagonal rods 13 are arranged between the stay bar 14 and the main flushing pipe 8, and the two diagonal rods 13 are symmetrically arranged relative to the main flushing pipe 8; a coupling rod 11 is arranged between the main flushing pipe 8 and the lower mud scraper 21, which ensures the operational stability of the main flushing pipe 8. The main flushing device is characterized in that a secondary flushing cross arm pipe inner gas pipe 16 is arranged in the main flushing pipe 8, a secondary flushing gas pipe riser 7 connected with the secondary flushing cross arm pipe inner gas pipe 16 is arranged in the mud scraper central shaft 6, and the upper ends of the mud scraper central shaft 6 and the secondary flushing gas pipe riser 7 are respectively connected with the main flushing gas pipe 3 and the secondary flushing gas pipe 4 through a four-way rotary joint 5. The top of the tank body 20 is provided with a blower 1, the blower 1 is connected with a gas transmission main pipe 19, the tail end of the gas transmission main pipe 19 is connected with a two-position three-way electromagnetic valve 2, and the two-position three-way electromagnetic valve 2 is respectively connected with a main flushing gas transmission pipe 3 and a secondary flushing gas transmission pipe 4. In order to conveniently adjust the air inflow of the air conveying main pipe 19, the air conveying main pipe 19 is also provided with an air release valve 23. The top of the tank body is also provided with a control box 15 for controlling the operation of each device.
The other end of the U-shaped tubular hinge 9,U type tubular hinge 9 arranged at the tail end of the main flushing pipe 8 is connected with a secondary flushing pipe 10. One side of the U-shaped tubular hinge 9 is fixedly connected with the flange of the main flushing pipe 8, a group of air outlet holes 901 are uniformly distributed on the pipe wall of the other side of the U-shaped tubular hinge 9, a sleeve 902 is sleeved outside the air outlet holes 901 of the U-shaped tubular hinge 9, a shaft sleeve 903 is arranged between the sleeve 902 and the U-shaped tubular hinge 9, sealing rings are arranged in the shaft sleeve 903, and two shaft sleeves 903 are arranged up and down. The upper end of the U-shaped tubular hinge 9 is provided with a coupling cover plate 905, and the sleeve 902 is provided with a secondary air outlet 904 connected with the secondary flush tube 10. A row of secondary air holes 101 are formed in the secondary flushing pipe 10, and the secondary air holes 101 are formed in the inner side wall, close to the center of the tank body 20, of the secondary flushing pipe 10. The end of the secondary flush tube 10 is provided with a horizontally rolling roller 12. In operation, the end of the secondary flush tube 10 is pressed against the inner wall of the tank 20.
The inclined tube cleaning device of the efficient sedimentation tank automatically and pneumatically operates once every month according to actual conditions, and is set for 56 minutes in a cycle period of each time. When the on-site control box starts a flushing program according to preset time, the blower operates, the lower position of the three-position four-way electromagnetic valve is communicated, the upper position is closed, low-pressure air flows from the outlet of the blower through the lower position of the three-position four-way valve, the main flushing air delivery pipe, the four-way rotary joint, the main flushing air delivery vertical pipe and the main flushing pipe, the low-pressure air overcomes the water depth pressure and is sprayed upwards from a plurality of round holes reasonably arranged at the upper part of the main flushing pipe at a high speed, and the air rapidly flows upwards to the lower part of the inclined pipe and continuously flows upwards along the inclined pipe, flows upwards to the upper part of the inclined pipe and continuously flows upwards to the water surface to enter the air. In the upward process of the air flow, a large amount of continuous air is continuously combined with water to form a large amount of water-air mixture with dense bubbles, the density of the mixture is obviously lower than that of water which does not pass through nearby air flows, the mixture floats upwards under the buoyancy effect of nearby water, the water flows upwards from the flushing jet pipe hole to the lower end of the inclined pipe, then enters the inside of the inclined pipe area, above the inclined pipe and in the air above the water surface, as the main flushing jet pipe slowly rotates along with the mud scraper, after the jet pipe rotates for a certain angle, the original area does not have air flow any more, the water-air mixture which rises to the upper end of the inclined pipe and is higher than the water surface rises to the upper end of the inclined pipe, the water after the gas is separated out rapidly falls under the action of dead weight, and the rising and falling vibration process of the large amount of water-air mixture is realized. More important is: in the ascending process of the water-gas mixture, a large amount of bubbles are sprayed and destroyed on the wall surface of the inclined tube, new bubbles are regenerated, continuous flushing vibration and scrubbing are generated on the wall surface of the inclined tube in the bubble destruction and regeneration process, so that sludge particles adhered to the wall surface of the inclined tube are unstable and fall down under the action of dead weight to reach the sludge surface of the sedimentation tank, and the inclined tube is effectively cleaned. Because the output air of the whole blower in all flow is sprayed out from a main flushing jet pipe, the local cleaning strength is high, the main flushing air pipe synchronously rotates along with the slow rotation of the mud scraper, the inclined pipe above the main flushing air pipe sequentially obtains scanning flushing, and when the mud scraper rotates for one circle, the circular area flushing jet pipe realizes the effective flushing of the inclined pipe above the circular area of the whole square sedimentation tank. Then the two-position three-way electromagnetic valve is switched to an upper state, at the moment, the gas path of the main flushing gas pipe is closed, the secondary flushing gas pipe is communicated, and the low-pressure air discharged by the blower enters the secondary flushing gas pipe, the four-way rotary joint, the secondary flushing gas pipe in the cross arm pipe and the secondary flushing pipe through the U-shaped pipe type hinge. The air flow is filled in the air jet pipe rapidly and is ejected out from the secondary air jet hole at a high speed, the buoyancy of the secondary air jet pipe is increased due to the fact that water in the secondary air jet pipe is taken away and extruded by air stripping, the buoyancy of the secondary air jet pipe is basically equal to the gravity of the secondary air jet pipe, at the moment, the weight of the cantilever air jet pipe in the water is almost 0, the cantilever skimming force of the cantilever air jet pipe on the U-shaped pipe type hinge is reduced to be close to 0, and therefore the rotation resistance moment of the air jet pipe is small.
After the inclined tube cleaning action set at one stage is completed, the blower is stopped, the two-position three-way electromagnetic valve is automatically reset to the on state of the lower main flushing gas pipeline, and the secondary flushing gas pipeline is closed. The roller pushes the secondary flushing pipe back to the position of the included angle of about 90 degrees between the center line of the secondary flushing pipe and the center line of the upper cross arm under the action of the pool wall. The acting force of the roller and the pool wall is close to 0, the running energy consumption of the mud scraper can not be increased, and the abrasion of the pool wall to the roller is extremely small. The further roller is made of MC nylon (enough gap of the mandrel is reserved to ensure that the gap is still reserved after water absorption), and the wear resistance is excellent, so that the roller has long service life, is not easy to age under water, and has service life of more than 20 years under water according to related past experience.
In order to reduce the rotational sealing resistance of the U-shaped tubular hinge (see fig. 3), the length Ho of the outlet hole section of the U-shaped tubular hinge is required to be long enough, ho is generally not less than 13% of the cantilever length L of the secondary flushing gas nozzle 10, so as to reduce the transverse force of gravity of the cantilever in the water of the secondary flushing pipe, which is derived from the shaft sleeve at the upper end and the lower end of the core shaft pipe when no gas exists in the pipe, the further shaft sleeve is made of UPE (ultra high molecular weight polyethylene) materials which have good wear resistance, enough strength and lower friction coefficient in water than polytetrafluoroethylene, so as to reduce the rotational resistance, and the further sealing ring is made of minimum compression of 0-5%, so that the sealing resistance is reduced to the minimum because the leakage gas is allowed to be used for flushing the inclined pipe right above the U-shaped hinge. Through the example verification of sewage treatment plant, the operation requirement has been satisfied well to above-mentioned structure.
Example 2:
The utility model provides a high-efficient sedimentation tank's pipe chute belt cleaning device, as shown in fig. 1, fig. 2, fig. 4, includes cell body 20, cell body 20 is rectangle or other polygonal structure. The upper part of the tank body 20 is distributed with an inclined tube 17, the center of the tank body 20 is provided with a mud scraper central shaft 6, the upper end of the mud scraper central shaft 6 is connected with a mud scraper driving machine case 18, the bottom of the tank body 20 is provided with a mud scraper 21, and the mud scraper driving machine case 18 drives the mud scraper 21 to rotate through the mud scraper central shaft 6. The central shaft 6 of the mud scraper is of a tubular structure and is used as a main flushing gas transmission vertical pipe, a main gas outlet 601 is formed in the side wall of the central shaft 6 of the mud scraper, a main flushing pipe 8 is horizontally arranged below the inclined pipe 17, and a secondary flushing pipe 10 is connected and arranged at the other end of the main flushing pipe 8, which is provided with a U-shaped tubular hinge 9,U and a tubular hinge 9.
One side of the U-shaped tubular hinge 9 is fixedly connected with the flange of the main flushing pipe 8, a group of air outlet holes 901 are uniformly distributed on the pipe wall of the other side of the U-shaped tubular hinge 9, a sleeve 902 is sleeved outside the air outlet holes 901 of the U-shaped tubular hinge 9, a torsion spring 906 is sleeved outside the sleeve 902, the fixed end of the torsion spring 906 is arranged on the pipe wall of the U-shaped tubular hinge 9, and the main flushing pipe 8 and the secondary flushing pipe 10 are positioned on the same axis under the condition that the torsion spring 906 is not stressed. A shaft sleeve 903 is arranged between the sleeve 902 and the U-shaped tubular hinge 9, sealing rings are arranged in the shaft sleeve 903, and two shaft sleeves 903 are arranged up and down. The upper end of the U-shaped tubular hinge 9 is provided with a coupling cover plate 905, and the sleeve 902 is provided with a secondary air outlet 904 connected with the secondary flush tube 10. A row of secondary air holes 101 are formed in the secondary flushing pipe 10, and the secondary air holes 101 are upward arranged or are formed in the inner side wall, close to the center of the tank body 20, of the secondary flushing pipe 10. When the secondary flushing pipe 10 rotates along with the main flushing pipe 8 in operation, the tail end of the secondary flushing pipe 10 is pressed against the inner wall of the tank body 20, and when the distance from the U-shaped pipe type hinge 9 to the inner wall of the tank body 20 is smaller than the length of the secondary flushing pipe 10, the extrusion force overcomes the torsion force of the torsion spring 906, so that the secondary flushing pipe 10 is bent, and the tail end of the secondary flushing pipe 10 is always abutted against the inner wall of the tank body 20. The angle between the secondary flushing pipe 10 and the main flushing pipe 8 is changed by the action of the torsion spring 906, so that the secondary flushing pipe 10 can clean the corners around the tank body 20. Otherwise, the same as in example 1 was conducted.
The invention is described above by way of example with reference to the accompanying drawings. It will be clear that the invention is not limited to the embodiments described above. As long as various insubstantial improvements are made using the method concepts and technical solutions of the present invention; or the invention is not improved, and the conception and the technical scheme are directly applied to other occasions and are all within the protection scope of the invention.
Claims (7)
1. The inclined tube cleaning device of the high-efficiency sedimentation tank comprises a tank body (20), a mud scraper central shaft (6) and an inclined tube (17) which are arranged in the tank body (20), and a mud scraper (21) which is arranged at the bottom of the tank body (20); the method is characterized in that: the mud scraper central shaft (6) is of a tubular structure, a main air outlet (601) is formed in the side wall of the mud scraper central shaft (6), a main flushing pipe (8) is horizontally arranged below the inclined pipe (17), a row of main air injection holes (801) are distributed above the main flushing pipe (8), one end of the main flushing pipe (8) is in sealing connection with the main air outlet (601), the other end of the main flushing pipe is movably connected with a secondary flushing pipe (10), a row of secondary air injection holes (101) are formed in the secondary flushing pipe (10), and when the mud scraper central shaft is in operation, the tail end of the secondary flushing pipe (10) is pressed against the inner wall of the tank body (20);
A U-shaped tubular hinge (9) is arranged between the main flushing pipe (8) and the secondary flushing pipe (10), one side of the U-shaped tubular hinge (9) is fixedly connected with a flange of the main flushing pipe (8), a group of air outlet holes (901) are uniformly distributed on the pipe wall of the other side of the U-shaped tubular hinge (9), a sleeve (902) is sleeved outside the air outlet holes (901) of the U-shaped tubular hinge (9), a shaft sleeve (903) is arranged between the sleeve (902) and the U-shaped tubular hinge (9), a connecting cover plate (905) is arranged at the upper end of the U-shaped tubular hinge (9), and a secondary air outlet (904) connected with the secondary flushing pipe (10) is arranged on the sleeve (902);
A torsion spring (906) is sleeved on the sleeve (902), and the fixed end of the torsion spring (906) is fixedly arranged on the outer wall of the U-shaped tubular hinge (9); the secondary air jet holes (101) are upwards arranged or are arranged on the inner side wall of the secondary flushing pipe (10) close to the center of the tank body (20);
Be provided with in main flushing pipe (8) and wash xarm intraductal gas-supply pipe (16) once, be provided with in mud scraper center pin (6) and wash xarm intraductal gas-supply riser (7) of secondary that gas-supply pipe (16) are connected, the other end and the U type tubular hinge (9) of secondary flushing xarm intraductal gas-supply pipe (16) are connected, the inlet end connection of secondary flushing gas-supply riser (7) is provided with secondary flushing gas-supply pipe (4), mud scraper center pin (6) inlet end connection is provided with main flushing gas-supply pipe (3).
2. The chute cleaning apparatus for a high efficiency sedimentation tank as set forth in claim 1, wherein: the secondary air jet holes (101) are arranged on the inner side wall of the secondary flushing pipe (10) close to the center of the tank body (20).
3. The chute cleaning apparatus for a high efficiency sedimentation tank as set forth in claim 2, wherein: the tail end of the secondary flushing pipe (10) is provided with a roller (12) which horizontally rolls.
4. The chute cleaning apparatus for a high efficiency sedimentation tank as set forth in claim 1, wherein: the mud scraper is characterized in that a supporting rod (14) is further symmetrically and fixedly arranged on the central shaft (6) of the mud scraper, the supporting rod (14) and the main flushing pipe (8) are located on the same plane and are perpendicular to each other, two diagonal draw bars (13) are arranged between the supporting rod (14) and the main flushing pipe (8), and the two diagonal draw bars (13) are symmetrically arranged relative to the main flushing pipe (8).
5. The chute cleaning apparatus for a high efficiency sedimentation tank as set forth in claim 4, wherein: a connecting rod (11) is arranged between the main flushing pipe (8) and the mud scraper (21) positioned below.
6. The chute cleaning apparatus for a high efficiency sedimentation tank as set forth in claim 1, wherein: the secondary flushing gas pipe (4) and the main flushing gas pipe (3) are connected with the gas inlet end of the main flushing gas pipe, a two-position three-way electromagnetic valve (2) is arranged, and the two-position three-way electromagnetic valve (2) is connected with a blower (1).
7. The efficient sedimentation tank's chute cleaning apparatus as set forth in claim 1, wherein: the mud scraper is also provided with a four-way rotary joint (5), two rotary ports of the four-way rotary joint (5) are respectively connected with a central shaft (6) of the mud scraper and a secondary flushing gas transmission vertical pipe (7), and two fixed ports of the four-way rotary joint (5) are respectively connected with a main flushing gas transmission pipe (3) and a secondary flushing gas transmission pipe (4).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810414994.XA CN108479123B (en) | 2018-05-03 | 2018-05-03 | Inclined tube cleaning device of efficient sedimentation tank |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810414994.XA CN108479123B (en) | 2018-05-03 | 2018-05-03 | Inclined tube cleaning device of efficient sedimentation tank |
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| CN108479123A CN108479123A (en) | 2018-09-04 |
| CN108479123B true CN108479123B (en) | 2024-05-10 |
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| CN201810414994.XA Active CN108479123B (en) | 2018-05-03 | 2018-05-03 | Inclined tube cleaning device of efficient sedimentation tank |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111228863B (en) * | 2020-01-19 | 2020-09-25 | 蓝深集团股份有限公司 | High-efficient sedimentation tank that contains washing unit |
| CN112717480B (en) * | 2020-12-04 | 2022-05-27 | 中瑞工程设计院有限公司 | Bury formula sewage integration treatment facility |
| CN113666566A (en) * | 2021-09-23 | 2021-11-19 | 安乐工程有限公司 | Magnetic medium sedimentation tank system |
| CN114308920B (en) * | 2021-12-24 | 2022-09-20 | 苏伊士水务工程有限责任公司 | Method for washing inclined tube of high-density sedimentation tank and washing system |
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| EA201101278A1 (en) * | 2011-08-05 | 2012-10-30 | Алексей Алексеевич Курятников | ILOSCREB |
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| EA201101278A1 (en) * | 2011-08-05 | 2012-10-30 | Алексей Алексеевич Курятников | ILOSCREB |
| CN204841044U (en) * | 2015-07-08 | 2015-12-09 | 云南海诚环保科技有限公司 | Upflow tube settler with recoil cleaning function |
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| CN108479123A (en) | 2018-09-04 |
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