CN223366308U - High-efficient aeration grit chamber - Google Patents

Abstract

The utility model provides a high-efficiency aerated grit chamber. A submersible sand pump is provided to sequentially process the bottom of a first tank body or a second tank body through a first sand suction pipe, thereby achieving comprehensive suction and removal of sand and suspended sediment at the bottom of the first tank body or the second tank body. The submersible sand pump is not easily clogged by large pieces of garbage and excessive sand particles, while being able to remove smaller sand particles and suspended matter, thereby improving the efficiency, effectiveness, and stability of sand removal. Simultaneously, a skimming plate of a skimming device skims scum into a scum well through a scum discharge notch, effectively removing scum from the water surface, reducing the scum's retention time on the tank surface and its impact on water quality. This allows for rapid collection and centralized treatment of scum on the tank surface and sediment at the tank bottom, thereby improving water quality and facilitating improved aeration efficiency.

Description

High-efficient aeration grit chamber

Technical Field

The utility model relates to the technical field of water quality treatment, in particular to a high-efficiency aeration sand basin.

Background

The aeration grit chamber is used as an important component in a sewage treatment system, and has the main function of removing inorganic impurities such as sand grains, suspended matters and the like in sewage so as to protect the normal operation of subsequent treatment facilities. The traditional sand removal mode of the sand basin mostly adopts the combination of a sand scraping plate and a gas stripping pump, and the settled sand is scraped and sent to one side of the sand basin through the sand scraping plate, and the sand is sucked and discharged through a sand suction pump, so that the sand removal operation of the sand basin is completed.

However, the scraping plate may scrape off sand particles deposited at the bottom of the grit chamber, but has poor removal effect on smaller sand particles and suspended matters, which easily causes accumulation of smaller sand particles and suspended matters, and reduces aeration efficiency. Meanwhile, the air stripping pump is easily blocked by massive garbage and excessive sand grains in the sand stripping process, so that the abrasion or blocking fault of the air stripping pump is caused, the sand removal efficiency is affected, and the maintenance cost and the downtime are increased.

Therefore, the existing grit chamber is necessary to be modified, and the aeration grit chamber with good removal effect of sand grains and suspended matters and high sand removal efficiency is provided.

Disclosure of utility model

Aiming at the technical problems of poor sand removal effect and low sand removal efficiency when a sand scraping plate and a stripping pump are adopted for sand removal in the grit chamber in the prior art, the utility model provides the high-efficiency aeration grit chamber.

The high-efficiency aeration grit chamber comprises a water inlet area, a grit chamber and a water outlet area which are sequentially communicated, wherein the grit chamber comprises a first chamber body and a second chamber body, liquid level meters for detecting liquid level are arranged in the first chamber body and the second chamber body, two sides of the first chamber body and the second chamber body, which are perpendicular to water flow direction, are respectively provided with a rail, a first sand scraping bridge is arranged on the rails in a sliding manner, a skimming device and a sand sucking assembly are sequentially arranged on the sand scraping bridge along the length direction of the sand scraping bridge, the skimming device comprises a lifting connecting rod fixedly arranged on the sand scraping bridge and a skimming plate which is arranged below the sand scraping bridge, the skimming plate is rotatably connected to the lifting connecting rod, the sand sucking assembly comprises a hanging bracket, a submersible pump, a first sand sucking pipe and a first sand discharging pipe, the hanging bracket is fixedly arranged below the sand scraping bridge, the suction pump is fixedly arranged on the lower side of the sand scraping bridge, the first sand sucking pump is fixedly arranged on the first submersible pump, the scum sucking pump is arranged on the first sand sucking pump and the first sand sucking pipe, the scum is arranged on the first water tank body and the first sand discharging groove, the scum is arranged on the water tank body and the water tank, the scum discharging well is arranged on the water inlet side of the water tank and the water tank, and the scum discharging well is far from the water inlet groove is arranged on the water inlet side of the water tank and the water inlet well.

Further, the sand-water separator is also included, and the sand discharge groove is communicated with the sand-water separator through a second sand discharge pipe.

Further, the slag discharging notch is provided with a sealing plate for sealing the slag discharging notch, and the slag discharging notch comprises a first slag discharging port and a second slag discharging port which is positioned right above the first slag discharging port.

Further, a plurality of air pipes are arranged at the bottoms of the first tank body and the second tank body, each air pipe comprises a first air branch pipe, a second air branch pipe and a perforated aeration pipe, one end of each first air branch pipe is communicated with the perforated aeration pipe, the other end of each first air branch pipe is communicated with the second air branch pipe, and the second air branch pipe is communicated with an air blower room.

The water inlet area comprises a water collecting tank body, a filtering tank body and a water drainage tank body, wherein the water collecting tank body, the filtering tank body and the water drainage tank body are communicated sequentially through a first gate, the water level of each tank is adjusted by controlling the opening degree of the first gate, a water inlet pipe is arranged at the bottom of the water collecting tank body, a rotary fine grid machine is arranged in the filtering tank body, and the water drainage tank body is respectively communicated with the first tank body and the second tank body through a second gate.

Further, the water outlet area comprises a third tank body communicated with the first tank body and the second tank body, an overflow pipe communicated with the outside and a drain pipe are arranged in the third tank body, and a third gate is arranged between the drain pipe and the third tank body.

Further, the first tank body and the second tank body comprise a tank bottom and tank walls which are respectively arranged at two sides of the tank bottom along the water flow direction, a slope is arranged at the joint of the tank body and the tank walls, a sand collecting tank is arranged at one end of the tank bottom, which is close to the water outlet area, the tank bottom is inclined downwards along the direction, which is close to the sand collecting tank, and the sand collecting tank comprises a tank bottom and a plurality of side walls which are connected with the tank bottom and the tank bottom, and the side walls are arranged in an inclined manner.

Further, a gas stripping pump is arranged above the first tank body and the second tank body respectively, the gas stripping pump comprises a gas inlet, a gas outlet and a liquid outlet, the gas outlet is connected with a second sand suction pipe, the other end of the second sand suction pipe is movably inserted into the sand collecting tank, and the liquid outlet is communicated with the sand discharging tank through a third sand discharging pipe.

Further, one side of the first tank body and one side of the second tank body are respectively provided with an emptying well for emptying the tank bodies, one end of each emptying well is communicated with the tank bottom, and the other end of each emptying well is provided with an emptying pipeline for discharging outwards.

Further, a sealing cover is arranged on the top cover of the first tank body and the second tank body.

The high-efficiency aeration sand setting tank has the beneficial effects that the submersible sand pump is arranged to sequentially treat the tank bottom of the first tank body or the second tank body through the first sand suction pipe, so that sand grains and suspended matter sand setting at the bottom of the first tank body or the second tank body are comprehensively sucked and removed, the submersible sand pump is not easy to be blocked by massive garbage and excessive sand grains, smaller sand grains and suspended matters can be removed, and the sand removal efficiency, the sand removal effect and the stability are improved. Meanwhile, skimming plates of the skimming device skim the scum into the scum well through the skimming notch, so that scum on the water surface is effectively skimmed, the detention time of the scum on the pond surface is reduced, the influence of the scum on the water quality is reduced, further, the rapid collection and centralized treatment of the scum on the surface of the pond and the settled sand at the bottom of the pond are realized, the water quality of the water body is improved, and the aeration efficiency is improved.

Drawings

Fig. 1 is a schematic structural view of a high-efficiency aeration grit chamber provided by the utility model.

FIG. 2 is a schematic view of the cross-sectional structure A-A of FIG. 1;

FIG. 3 is a schematic view of the cross-sectional B-B structure of FIG. 2.

Drawing reference numerals

1. A water inlet area; 2, a sand sedimentation area, 21 a first tank body, 211, a tank body, 212, a tank wall, 213, a slope, 214, a sand collecting groove, 22a second tank body, 23, a sand scraping bridge, 24, a skimming device, 25, a sand sucking component, 26, a hanging bracket, 27, a submersible sand pump, 28, a first sand discharging pipe, 3, a water outlet area, 31, a third tank body, 32, an overflow pipe, 33, a drain pipe, 34, a third gate, 4, a sand discharging groove, 5, a scum well, 6, a slag discharging notch, 7, a first air branch pipe, 8, a second air branch pipe, 9, a perforated aerator pipe, 10, a gas stripping pump, 11, a second sand sucking pipe, 12, a third sand discharging pipe, 13, a sand water separator, 14, a second sand discharging pipe, 15, a drain well, 16, an emptying pipe, 17 and a sealing cover.

Detailed Description

For a further detailed description of the utility model, reference is made to the accompanying drawings. It is specifically intended that the embodiments described below are only some, but not all, embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1, a high-efficiency aeration grit chamber comprises a water inlet area 1, a grit chamber 2 and a water outlet area 3 which are sequentially communicated.

Specifically, referring to fig. 1 and 2, the water inlet area 1 includes a water collecting tank 101, a filtering tank 102 and a water draining tank 103, where the water collecting tank 101, the filtering tank 102 and the water draining tank 103 are all sequentially communicated through a first gate 104, and the water level of each tank is adjusted by controlling the opening of the first gate 104, a water inlet pipe 105 is disposed at the bottom of the water collecting tank 31, a rotary fine grid machine 106 is disposed in the filtering tank 102, and the water draining tank 103 is communicated with the sand settling area 2 through a second gate 107.

The water level of each pool is adjusted by adjusting the opening of the first gate 104, so that the water inlet speed of the water inlet pipe 35 is adjusted, and the water flow speed of the water flowing into the sand sediment zone 2 is adjusted by matching with the opening of the second gate 107. While a suitable water velocity assists in the sedimentation and removal of the particles in the sand sediment zone 2. The treatment effect of the grit chamber is optimized by adjusting the water inlet speed, and the treatment efficiency is improved.

The rotary fine grid machine 106 includes a conveyor belt with a plurality of grid bars and a motor for driving the conveyor belt to rotate. The fixed impurities in the filter tank body 32 can be filtered and conveyed out by driving the conveying belt to rotate through the motor, so that the impurity load of the subsequent treatment on the sand sedimentation zone 2 is reduced, and the treatment difficulty is reduced.

Referring to fig. 1 and 3, the sand settling zone 2 includes a first tank 21 and a second tank 22, and a drainage tank 33 is respectively communicated with the first tank 21 and the second tank 22. A level gauge (not shown) for detecting the liquid level is provided in each of the first tank 21 and the second tank 22. Through the setting of level gauge, can in time acquire the inside liquid level variation of first cell body 21 and second cell body 22, and then control business turn over water yield, water velocity and open and close through certain notch of liquid level control.

Both sides of the first tank body 21 and the second tank body 22 perpendicular to the water flow direction are respectively provided with a rail (not shown in the figure), a sand scraping bridge 23 is slidably arranged on the rails, and the sand scraping bridge 23 is sequentially provided with a skimming device 24 and a sand sucking assembly 25 along the length direction of the sand scraping bridge 23.

The sand scraping bridge 23 is driven by the driving mechanism to move along the water flow direction on the track, so that the skimming device 24 skims the oil residues on the water surface, and the sand sucking assembly 25 sucks and removes sand grains and other heavier suspended particles in the water, so that the sand removal and skimming treatment of the inlet water are completed.

The skimming devices 24 each comprise a liftable connecting rod 241 fixedly mounted on the scraping bridge 23 and a skimming plate 242 positioned below the scraping bridge 23, and the skimming plates 242 are rotatably connected to the liftable connecting rod 241.

Wherein, a scum well 5 is disposed on the side of the first tank body 21 and the second tank body 22 away from the water inlet area 1, and the tops of the first tank body 21 and the second tank body 22 are respectively communicated with the corresponding scum well 5 through a scum notch 6, and the scum skimming plate 242 skimming scum into the scum well 5 through the scum notch 6. The skimming plate 242 continuously works along with the movement of the sand scraping bridge 23 along the water flow direction, skims the oil residue and the scum on the water surface to the side close to the scum well 5, finally skims the scum into the scum well 5 through the slag discharging notch 6, effectively skims the scum and the oil residue on the water surface, prevents the scum and the oil residue from accumulating in the water body and deteriorating the water quality, realizes the rapid collection and the centralized treatment of the scum and the oil residue, and improves the efficiency of the treatment of the scum and the oil residue.

Preferably, the liftable connecting rod 241 comprises a telescopic sleeve and a telescopic rod, wherein the telescopic sleeve is fixedly connected with the sand scraping bridge 23, one end of the telescopic rod is slidably connected in the telescopic sleeve, and the other end of the telescopic rod is rotatably connected with the skimming plate 242. The telescopic rod is driven by the driving mechanism to stretch and retract in the telescopic sleeve, the length of the liftable connecting rod 241 is adjusted, and then the height of the skimming plate 242 is adjusted, so that the skimming plate is suitable for various tank body liquid levels.

The slag discharging slots 6 are respectively provided with a sealing plate (not shown in the figure) for sealing the slag discharging slots 4, and the slag discharging slots 6 comprise a first slag discharging port and a second slag discharging port which is positioned right above the first slag discharging port. The heights of the first slag discharge port and the second slag discharge port are different so as to adapt to the operation of skimming slag entering the scum well 5 of different pool liquid. In this embodiment, after the liquid level of the pool body is obtained by the liquid level meter, the sealing plate of the first slag discharging port or the second slag discharging port corresponding to the liquid level is opened, and then the length of the liftable connecting rod 241 is adjusted, so that the skimming plate 242 is adjusted to be matched with the height of the liquid level and the slag discharging port.

The sand sucking assembly 25 comprises a hanging bracket 26, a submersible sand pump 27, a first sand sucking pipe (not shown) and a first sand discharging pipe 28, wherein the hanging bracket 26 is fixedly arranged below the sand scraping bridge 23, the submersible sand pump 27 is fixed on the hanging bracket 26, the first sand sucking pipe and the first sand discharging pipe 28 are respectively connected with a sand inlet and a sand outlet of the submersible sand pump 27, and a sand discharging groove 4 is arranged between the first tank body 21 and the second tank body 22.

Through the sand scraping bridge 23 moves along the track, and then drives the first sand suction pipe, the first sand discharge pipe 28 and the submersible sand pump 27 on the hanging bracket 26 to move along with the hanging bracket 26, so that the submersible sand pump 27 can sequentially process the bottom of the first tank body 21 or the second tank body 22 through the first sand suction pipe, thereby realizing comprehensive suction of sand deposit at the bottom of the first tank body 21 or the second tank body 22 and discharging the sand deposit into the sand discharge groove 4.

The submersible sand pump 27 has strong suction capability, and can rapidly suck out sand grains and suspended matters in the first tank body 21 and the second tank body 22, and particularly for smaller sand grains and suspended matters, the removal effect is more remarkable, so that the sand removal efficiency and effect are improved. Meanwhile, the submersible sand pump 27 is not easy to be blocked by massive garbage and excessive sand grains in the running process, so that the stability of the sand removal efficiency is ensured. Meanwhile, the concentration of suspended matters in the tank body is reduced, and the aeration efficiency is further improved. Meanwhile, since the submersible sand pump 27 does not need an additional supply of compressed air, malfunctions due to blockage of the air pump and the like are reduced.

Through the arrangement of the sand sucking component 2525 and the skimming device 24, scum and sand setting of the first tank body 21 and the second tank body 22 are effectively removed, the water quality in the tank body is ensured to be in a good state, the suspension concentration in the tank body is reduced, oxygen is easier to be distributed in sewage, and the aeration efficiency is improved.

The sand discharge groove 4 is horizontally arranged along the water flow direction, and the sand discharge opening of the first sand discharge pipe 28 is positioned right above the sand discharge groove 4, so that the sand discharge opening of the first sand discharge pipe 28 is always positioned right above the sand discharge groove in the moving process, and the accuracy of sand discharge is improved.

Referring to fig. 1 and 2, a high efficiency aeration grit chamber further includes a grit-water separator 13, and the discharge tank 4 communicates with the grit-water separator 13 through a second discharge pipe 14. The water-containing sand of the first tank body 21 and the second tank body 22 is sucked and then discharged into the sand discharge groove 4, the sucked water-containing sand is conveyed into the sand-water separator 13 through the second sand discharge pipe 14 to be subjected to sand-water separator, sand and other impurities in water, including sediment, suspended matters and the like, are filtered effectively, the separated water is led to a pump station, the phenomenon that the sand is accumulated in the sand discharge groove 4 and causes blockage or faults is prevented, normal operation of the sand discharge groove is ensured, sand-settling efficiency is improved, and water quality treatment effect is optimized.

A plurality of air pipes (not shown in the figure) are installed at the bottoms of the first tank body 21 and the second tank body 22, each air pipe comprises a first air branch pipe 7, a second air branch pipe 8 and a perforated aeration pipe 9, one end of each first air branch pipe 7 is communicated with the perforated aeration pipe 9, the other end of each first air branch pipe is communicated with the second air branch pipe 8, and the second air branch pipe 8 is communicated with an air blower room (not shown in the figure).

The water outlet area 3 includes a third tank 31 connected to the first tank 21 and the second tank 22, an overflow pipe 32 and a drain pipe 33 connected to the outside are disposed in the third tank 31, and a third gate 34 is disposed between the drain pipe 33 and the third tank 31.

The first tank body 21 and the second tank body 22 each comprise a tank bottom 211 and a tank wall 212 respectively arranged at two sides of the tank bottom 211 along the water flow direction, and a slope 213 is arranged at the joint of the tank body 211 and the tank wall 212. By the arrangement of the slope 213, sand and stone are facilitated to settle towards the bottom 211, and settling efficiency is improved.

The bottom 211 is close to the one end of the water outlet area 3 and is provided with a sand collecting groove 214, the bottom 211 is inclined downwards along the direction close to the sand collecting groove 214, the sand collecting groove 214 comprises a groove bottom and a plurality of side walls connected with the bottom 211 and the groove bottom, and the side walls are arranged in an inclined mode. The sand collecting tank 214 is close to the water outlet area 3, is located at the tail end of the water flow direction in the tank body, sand in the water flow gradually subsides along with the water flow direction, and due to the fact that the tank bottom 211 is close to the sand collecting tank 214 and inclines downwards, settled sand particles gradually accumulate towards the sand collecting tank 214 under the action of the water flow and are distributed in the sand collecting tank 214 area in a relatively concentrated mode, the sand sucking assembly 25 can directly move to the position above the sand collecting tank 214 to suck sand, sand sucking times are reduced, sand sucking efficiency is improved, and follow-up cleaning and transportation are facilitated.

Preferably, a gas pump 10 is disposed above the first tank 21 and the second tank 22, and the gas pump 10 includes a gas inlet, a gas outlet, and a liquid outlet, the gas outlet is connected to a second sand suction pipe 11, the other end of the second sand suction pipe 11 is movably inserted into the sand collecting tank 214, and the liquid outlet is communicated with the sand discharging tank 4 through a third sand discharging pipe 12. After the existing grit chamber is modified, the air stripping pump 1 is reserved for the need of time and time. The air pump 1 may be used to pump and discharge the sand accumulated in the sand collecting tank 214 into the sand discharging tank 4 through the third sand discharging pipe 12, and assist the sand sucking assembly 25 to complete the sand sucking operation of the tank bottom 211 in the case of more sand setting, or perform sand sucking operation in the case that the sand sucking assembly 25 cannot be used, so as to complete the treatment of the sand in the sand collecting tank 214.

Referring to fig. 3, one side of the first tank body 21 and one side of the second tank body 22 are respectively provided with an emptying well 15 for emptying the tank bodies, one end of the emptying well 15 is communicated with the tank bottom, and the other end of the emptying well 15 is provided with an emptying pipeline 16 for discharging. The arrangement of the evacuation well 15 and the evacuation pipe 16 makes the cleaning work of the grit chamber simpler and more convenient. The operating personnel can discharge sediment and impurity in the cell body through evacuation pipeline 16, need not to get into the inside clearance of cell body, has reduced the degree of difficulty and the risk of clearance.

The top covers of the first tank body 21 and the second tank body 22 are provided with a sealing cover 17. The sealing cover 17 can provide a relatively closed treatment environment, and reduces the influence of external factors on the treatment effect of the grit chamber.

The preferred embodiments of the utility model disclosed above are only intended to help illustrate the utility model and are not intended to limit the utility model to the specific embodiments described. Obviously, other modifications and variations are possible in light of the teachings of this specification. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, to thereby enable others skilled in the art to best understand and utilize the utility model, and are not limited thereto, but are intended to be within the scope of the utility model.

Claims (10)

1. The high-efficiency aeration grit chamber is characterized by comprising a water inlet area, a grit area and a water outlet area which are communicated in sequence;

the sand sedimentation zone comprises a first tank body and a second tank body, wherein liquid level meters for detecting the liquid level height are arranged in the first tank body and the second tank body, and rails are arranged on two sides of the first tank body and the second tank body, which are perpendicular to the flow direction of water flow, and a sand scraping bridge is arranged on the rails in a sliding manner;

The skimming devices comprise a liftable connecting rod fixedly arranged on the sand scraping bridge and a skimming plate positioned below the sand scraping bridge, and the skimming plates are rotatably connected to the liftable connecting rod;

The sand sucking assembly comprises a hanging bracket, a submersible sand pump, a first sand sucking pipe and a first sand discharging pipe, wherein the hanging bracket is fixedly arranged below the sand scraping bridge;

A sand discharge groove is arranged between the first tank body and the second tank body, the sand discharge groove is horizontally arranged along the water flow direction, and a sand discharge opening of the first sand discharge pipe is positioned right above the sand discharge groove;

And one sides of the first tank body and the second tank body, which are far away from the water inlet area, are respectively provided with a scum well, the tops of the first tank body and the second tank body are respectively communicated with the corresponding scum wells through a scum notch, and the scum skimming plate skimms scum into the scum wells through the scum notch.

2. A high efficiency aeration grit chamber as in claim 1 and further comprising a grit-water separator, said grit discharge tank being in communication with a grit-water separator through a second grit discharge tube.

3. A high efficiency aeration grit chamber as in claim 1, wherein said discharge slots are each provided with a closure plate for closing said discharge slots, and wherein said discharge slots include a first discharge port and a second discharge port located directly above said first discharge port.

4. A high efficiency aeration grit chamber as in claim 1, wherein a plurality of air pipes are mounted at the bottoms of the first and second tanks, wherein each air pipe comprises a first air branch pipe, a second air branch pipe and a perforated aeration pipe, one end of each first air branch pipe is communicated with the perforated aeration pipe, the other end is communicated with the second air branch pipe, and the second air branch pipe is communicated with a blower room.

5. The efficient aeration grit chamber of claim 1, wherein the water inlet area comprises a water collecting tank body, a filtering tank body and a water draining tank body, the water collecting tank body, the filtering tank body and the water draining tank body are communicated sequentially through a first gate, the water level of each tank is adjusted by controlling the opening degree of the first gate, a water inlet pipe is arranged at the bottom of the water collecting tank body, a rotary fine grid machine is arranged in the filtering tank body, and the water draining tank body is respectively communicated with the first tank body and the second tank body through a second gate.

6. A high efficiency aeration grit chamber according to claim 1, wherein said water outlet zone comprises a third cell body in communication with said first and second cell bodies, an overflow pipe in communication with the outside and a drain pipe are provided in said third cell body, and a third gate is provided between said drain pipe and said third cell body.

7. The high-efficiency aeration grit chamber of claim 1, wherein the first and second tanks comprise a bottom and a wall respectively disposed on both sides of the bottom in the water flow direction, a slope is disposed at the junction of the tank and the wall, a sand collecting tank is disposed at one end of the bottom near the water outlet area, the bottom is inclined downward in the direction near the sand collecting tank, the sand collecting tank comprises a tank bottom and a plurality of side walls connecting the bottom and the tank bottom, and the side walls are inclined.

8. The efficient aeration grit chamber of claim 1, wherein a gas stripping pump is disposed above the first and second cells, the gas stripping pump comprises a gas inlet, a gas outlet and a liquid outlet, the gas outlet is connected with a second sand suction pipe, the other end of the second sand suction pipe is movably inserted into the sand collection tank, and the liquid outlet is communicated with the sand discharge tank through a third sand discharge pipe.

9. A high efficiency aeration grit chamber according to claim 1, wherein one side of the first and second chambers is provided with an evacuation well for evacuating the chambers, one end of the evacuation well is connected to the bottom of the chamber, and the other end is provided with an evacuation pipe for discharging.

10. A high efficiency aeration grit chamber as in claim 1, wherein the top covers of the first and second cell bodies are provided with a sealing cover.