CN209602125U - A kind of rotary screen type grid with backwashing function - Google Patents
A kind of rotary screen type grid with backwashing function Download PDFInfo
- Publication number
- CN209602125U CN209602125U CN201822250014.5U CN201822250014U CN209602125U CN 209602125 U CN209602125 U CN 209602125U CN 201822250014 U CN201822250014 U CN 201822250014U CN 209602125 U CN209602125 U CN 209602125U
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- grid
- backwash
- pipeline
- barrel
- rotary screen
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Abstract
The utility model discloses a kind of rotary screen type grid with backwashing function, including grid cylinder and backwash mechanism above conditioning tank is arranged in, grid cylinder includes cylindrical barrel and the grid that barrel bottom is arranged in, and is equipped with water inlet pipe on barrel top；Backwash mechanism includes backwash pond, and the Backwash pipeline below grid cylinder is set, Backwash pipeline one end is connected with backwashing water bottom of pond portion, the other end is connected at least one water outlet jet orifice, jet nozzle is installed at water outlet jet orifice, water outlet jet orifice is respectively positioned on the lower section of grid and jet nozzle is arranged towards grid, and motor-driven valve and blower pump for pipeline are provided in Backwash pipeline.The utility model has the rotary screen type grid of backwashing function, by the way that Backwash pipeline is arranged, high pressure water flushing is carried out to the grid of grid cylinder bottom, the little particle waste blocked on grid can be effectively removed, grid head loss is reduced, guarantees the water inlet ability of grid.
Description
Technical field
The utility model relates to technical field of sewage, and in particular to a kind of rotary screen type lattice with backwashing function
Grid.
Background technique
Grid plays the role of preliminary separation of solid and liquid, at sewage as first of processing routine in sewage treatment
House refuse that bulky grain polluter in reason such as floats, leaf, excrement are separated from sewage, the sewage after separation
Conditioning tank is entered back into, convenient for elevator pump to the promotion of sewage and post precipitation and biochemical treatment.But grid easily blocks, need periodically into
Row manually or mechanically scarfing cinder.Artificial and mechanical scarfing cinder still has shortcoming, and what is blocked in partial grid grizzly bar gap or mesh is small
Particle contamination substance can not be removed by scarfing cinder, be will cause grid head loss increase, influenced the discharge capacity of grid.
Summary of the invention
The technical problem to be solved by the present invention is to provide a kind of the rotary screen type grid with backwashing function, cleaning power
Degree is big, backwash effect is good, can effectively solve the problem that the susceptible to plugging problem of grid.
In order to solve the above technical problems, the utility model adopts the following technical solution:
Design a kind of rotary screen type grid with backwashing function, including be arranged in grid cylinder above conditioning tank and
Backwash mechanism, the grid cylinder include cylindrical barrel and the grid that barrel bottom is arranged in, and are set on the barrel top
There is water inlet pipe；
The backwash mechanism includes backwash pond, and the Backwash pipeline below the grid cylinder, institute is arranged in
It states Backwash pipeline one end to be connected with the backwashing water bottom of pond portion, the other end is connected at least one water outlet jet orifice, In
Jet nozzle is installed, the water outlet jet orifice is respectively positioned on lower section and the jet nozzle of the grid at the water outlet jet orifice
It is arranged towards the grid, is provided with motor-driven valve and blower pump for pipeline in the Backwash pipeline.
In the above-mentioned technical solutions, grid cylinder and backwash pond are arranged at the top of conditioning tank, sewage to be processed
Enter grid cylinder by water inlet pipe, house refuse that the bulky grain polluter in sewage such as floats, leaf, excrement are by grid
The grid separation of cylinder bottom, the sewage after separation are handled by entering conditioning tank by grid；When what is isolated
When solid waste increases, grid is blocked, start the motor-driven valve and blower pump for pipeline in Backwash pipeline, in Backwash pipeline
Water by blower pump for pipeline pressurize after become high pressure water, and by jet nozzle bottom-up to the grid of grid cylinder into
Row backwash, the little particle waste for blocking grid is washed out；It, only need to will be in grid cylinder when carrying out manually or mechanically scarfing cinder again
Waste cleans up, and the small particles of pollution substance blocked in bottom grid grizzly bar gap or mesh can be by the recoil of high pressure water
It washes to wash out, is not required to carry out the independent cleaning of grill portion again, advantageously reduces grid head loss, guarantee the water inlet energy of grid
Power.Water in backwash pond can be extracted out of conditioning tank, be conducive to save water.
Preferably, the backwash pond is adjacent with the barrel side of the grid cylinder, in the grid cylinder and backwash
The adjacent barrel in pond is equipped with the overflow port being connected in backwash pond, and strainer is equipped at the overflow port.Work as grid
Solid waste in cylinder is more, blocking grid when, the sewage level in grid cylinder will rise, when liquid level reaches at overflow port
When, sewage overflow after the strainer at overflow port is separated by solid-liquid separation enters backwash pond, stand-by as backwash water.
Preferably, floating-ball level switch is additionally provided in the backwash pond, floating-ball level switch and external PLC are controlled
Device processed is corresponding to be electrically connected, the also electrical connection corresponding with external PLC controller of the motor-driven valve and blower pump for pipeline in Backwash pipeline,
Realize the automatic control of backwash.When grid blocks, the sewage in grid cylinder constantly flows into backwash pond from overflow port,
When liquid level in backwash pond reach a certain height, floating-ball level switch sends signal, external PLC to external PLC controller
Controller controls motor-driven valve and blower pump for pipeline unlatching in Backwash pipeline, backwashes to grid；With backwash
Progress, by high pressure water flushing from, grid network recovery discharge capacity, the sewage stored in grid cylinder passes through for tamper on grid
Bottom grid net enters conditioning tank, and overflow is gradually reduced to stopping, backwashing the water level decreasing in pond, floating-ball level switch with
Water level decreasing, when water level decreasing to certain position, floating-ball level switch sends PLC control outside signal to external PLC controller
Motor-driven valve and blower pump for pipeline in device control Backwash pipeline processed are closed, and are stopped backwash, are so recycled, grid may be implemented
The automatic control for netting backwash, that improves grid crosses water efficiency.
Preferably, spiral groove, the upper end connection of the spiral groove are offered on the inner surface of the barrel
At to the water inlet pipe, lower end is extended at bottom grid net.Enter the sewage of grid cylinder along spiral ditch by water inlet pipe
Slot flowing, on the one hand can be such that sewage is separated by solid-liquid separation by centrifugal force, achieve the purpose that preferably to remove oil removal；It is another
Aspect can reduce sewage to grid so that energy when sewage arrival grid cylinder bottom grid net is smaller by eddy flow energy dissipating
The impact force of net, the retention convenient for grid to suspended matter.
Preferably, the jet nozzle is greater than its bore for being discharged one end with the bore that water outlet jet orifice connect one end, and
The relative aperture at both ends is 10:1.Nozzle arrangements can improve the speed of water outlet by variable diameter in this way, and jet nozzle is made to form pressure
Bigger injection stream, bigger flushing ability is generated to grid, and flushing effect is more preferable.
The utility model has the beneficial effects that:
1. the utility model has the rotary screen type grid of backwashing function, by the way that Backwash pipeline is arranged, to grid cylinder bottom
The grid in portion carries out high pressure water flushing, can effectively remove the little particle waste blocked on grid, reduces grid head loss,
Guarantee the water inlet ability of grid；Blower pump for pipeline is set in Backwash pipeline, so that sewage is high through being formed when piping by pressurization
Water is pressed, and by water outlet jet orifice jet impulse grid sieve bottom, larger to the impact force of grid, cleaning intensity is big, recoil
It is good to wash effect.
2. sewage can be made to flow along spiral groove by the way that spiral groove is arranged on the inside of the barrel of grid cylinder,
On the one hand it is separated by solid-liquid separation sewage by centrifugal force, achievees the purpose that preferably to remove oil removal；On the other hand, pass through rotation
Energy dissipating is flowed, impact force when sewage reaches grid cylinder bottom grid net, the retention convenient for grid to suspended matter are reduced.
3. the utility model has the rotary screen type grid of backwashing function, floating-ball level switch and outside PLC can be passed through
Controller linkage, realizes the automatic control of backwash, is controlled by the height of liquid level of the sewage overflowed in backwash pond
The opening and closing of Backwash pipeline, the timing back-purge system of more general grid are energy saving, efficient.
Detailed description of the invention
Fig. 1 is the structural schematic diagram for the rotary screen type grid that the utility model has backwashing function；
Fig. 2 is the planar structure signal after there is the utility model the rotary screen type grid of backwashing function to be mounted on conditioning tank
Figure；
Fig. 3 is the structural schematic diagram of grid cylinder；
Figure label: 1 conditioning tank；2 water inlet pipes；3 grid cylinders；4 backwash ponds；5 floating-ball level switch；6 backwash tubes
Road；7 blower pump for pipeline；8 motor-driven valves；9 jet nozzles；10 overflow ports；Elevator pump in 11 conditioning tanks；The water outlet of 12 conditioning tanks
Pipe；13 grids；14 spiral grooves.
Specific embodiment
Illustrate specific embodiment of the present utility model with reference to the accompanying drawings and examples, but the following example only uses
It is described in detail the embodiments of the present invention, does not limit the scope of the utility model in any way.
Embodiment 1: a kind of rotary screen type grid with backwashing function referring to figures 1-3, including is arranged in conditioning tank 1
The grid cylinder 3 and backwash mechanism of top, grid cylinder 3 include cylindrical barrel and the grid 13, In that barrel bottom is arranged in
Barrel top is equipped with water inlet pipe 2；Spiral groove 14, the upper end connection of spiral groove 14 are offered on the inner surface of barrel
To water inlet pipe 2, lower end is extended at bottom grid net 13.
Backwash mechanism includes backwash pond 4, and the Backwash pipeline 5 below grid cylinder 3, backwash tube is arranged in
5 one end of road is connected with backwash 4 bottom of pond, and the other end is connected with multiple water outlet jet orifices, installs at water outlet jet orifice
There is jet nozzle 9, water outlet jet orifice is respectively positioned on the lower section of grid 13 and jet nozzle 9 is arranged towards grid 13, anti-
Motor-driven valve 8 and blower pump for pipeline 7 are provided on flushing pipe 6.Jet nozzle 9 is greater than with the bore that water outlet jet orifice connect one end
Its bore for being discharged one end, and the relative aperture at both ends is 10:1, and the speed of water outlet is improved by the structure of variable diameter jet nozzle.
Backwash pond 4 is adjacent with the barrel side of grid cylinder 3, on the barrel adjacent with backwash pond 4 of grid cylinder 3
Equipped with the overflow port 10 being connected in backwash pond, strainer is equipped at overflow port 10.It is additionally provided in backwash pond 4 floating
Ball liquid-level switch 5, floating-ball level switch 5 is corresponding with external PLC controller to be electrically connected, 8 He of motor-driven valve in Backwash pipeline 6
The also electrical connection corresponding with external PLC controller of blower pump for pipeline 7, realizes the automatic control of backwash.
Related equipment component is conventional equipment element unless otherwise instructed in the embodiment above.
The utility model has the specific working mode of the rotary screen type grid of backwashing function are as follows: grid cylinder 3 and backwash
Pond 4 is arranged above conditioning tank 1, and sewage to be processed enters grid cylinder 3 by water inlet pipe 2, can be in the barrel of grid cylinder 3
Spiral groove 14 is set on side surface, sewage can be made along 14 rotational flow of spiral groove, then passes through 3 bottom of grid cylinder
Grid 13 enters conditioning tank 1.Sewage is flowed along spiral groove 14, and sewage on the one hand can be made to carry out solid-liquid by centrifugal force
Separation achievees the purpose that preferably to remove oil removal；On the other hand, sewage can be made to reach grid cylinder bottom by eddy flow energy dissipating
Impact force when portion's grid reduces, the retention convenient for grid to suspended matter.Sewage carries out preliminary solid-liquid by grid cylinder 3
Enter conditioning tank 1 after separation, the elevator pump 11 and outlet pipe 12 passed through in conditioning tank after overregulating processing is discharged.
The process of automatic backwash is realized by floating-ball level switch and external PLC controller are as follows: when grid cylinder bottom
After grid is blocked, sewage cannot flow into conditioning tank by grid, just be stored in grid cylinder, so that the dirt in grid cylinder
Water water level is gradually increasing, can the overflow after the strainer at overflow port is separated by solid-liquid separation when water level rises at overflow port
Into backwash pond.Floating-ball level switch is provided in backwash pond, the position of floating ball can be with dirty in backwash pond
The water level of water rises together, and when floating ball rises to preset height, floating-ball level switch sends signal, PLC to PLC controller
Controller opens the motor-driven valve and blower pump for pipeline in Backwash pipeline, and sewage is flowed out from backwash pond, into backwash tube
Road.Sewage in Backwash pipeline becomes high pressure water after pressurizeing by blower pump for pipeline, and passes through the jet stream at water outlet jet orifice
Grid is backwashed nozzle bottom-up.With the progress of backwash, tamper on grid by high pressure water flushing from,
Grid network recovery discharge capacity, the interior sewage stored of grid cylinder enter conditioning tank by bottom grid net, and overflow is gradually reduced to
Stop, backwashing the water level decreasing in pond, floating ball is also with water level decreasing.When water level decreasing to predeterminated position, Floating Ball Liquid Level
It switchs to PLC controller and sends signal, PLC controller closes motor-driven valve and blower pump for pipeline, and backwash stops.So circulation,
The automatic backwash of grid cylinder can be realized, can also realize the control of backwash, such as people by other control modes certainly
Industry control solenoid valve and blower pump for pipeline or setting time switch realize timing backwash etc..
The embodiments of the present invention is elaborated above in conjunction with drawings and examples, but the utility model
It is not limited to the above embodiment, within the knowledge of a person skilled in the art, this can also not departed from
It changes or changes under the premise of utility model objective.
Claims (5)
1. a kind of rotary screen type grid with backwashing function, which is characterized in that including the grid cylinder above conditioning tank is arranged in
And backwash mechanism, the grid cylinder includes cylindrical barrel and the grid that barrel bottom is arranged in, on the barrel top
Equipped with water inlet pipe；
The backwash mechanism includes backwash pond, and the Backwash pipeline below the grid cylinder is arranged in, described anti-
Flushing pipe one end is connected with the backwashing water bottom of pond portion, and the other end is connected at least one water outlet jet orifice, described
Jet nozzle is installed, the water outlet jet orifice is respectively positioned on lower section and the equal court of jet nozzle of the grid at water outlet jet orifice
It is arranged to the grid, is provided with motor-driven valve and blower pump for pipeline in the Backwash pipeline.
2. the rotary screen type grid according to claim 1 with backwashing function, which is characterized in that the backwash pond
It is adjacent with the barrel side of the grid cylinder, it is equipped on the grid cylinder barrel adjacent with backwash pond and is connected to recoil
Overflow port in washing basin is equipped with strainer at the overflow port.
3. the rotary screen type grid according to claim 2 with backwashing function, which is characterized in that in the backwashing water
Floating-ball level switch is additionally provided in pond.
4. the rotary screen type grid according to claim 1 with backwashing function, which is characterized in that in the barrel
Spiral groove is offered on surface, the upper end of the spiral groove is connected at the water inlet pipe, and lower end extends to bottom
At grid.
5. the rotary screen type grid according to claim 1 with backwashing function, which is characterized in that the jet nozzle with
The bore that water outlet jet orifice connects one end is greater than its bore for being discharged one end, and the relative aperture at both ends is 10:1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822250014.5U CN209602125U (en) | 2018-12-29 | 2018-12-29 | A kind of rotary screen type grid with backwashing function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822250014.5U CN209602125U (en) | 2018-12-29 | 2018-12-29 | A kind of rotary screen type grid with backwashing function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209602125U true CN209602125U (en) | 2019-11-08 |
Family
ID=68399178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822250014.5U Expired - Fee Related CN209602125U (en) | 2018-12-29 | 2018-12-29 | A kind of rotary screen type grid with backwashing function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209602125U (en) |
-
2018
- 2018-12-29 CN CN201822250014.5U patent/CN209602125U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191108 Termination date: 20211229 |