Unpowered rotary drum filter
The utility model relates to a filter, in particular to an unpowered rotary drum filter.
For sewage treatment containing wool, fibers and light and small impurities, water and impurities are separated in a filtering mode, but the sewage impurities easily block filter holes, so that the daily maintenance is troublesome, and faults are easy to occur. In addition, the conventional filtering device needs to be loaded with power devices such as a speed reducer and a motor, more energy needs to be consumed in the operation process, and the operation cost is higher.
Disclosure of Invention
Aiming at the technical problems that the existing filtering equipment is easy to block when used for treating sewage containing impurities such as lint and fibers, and the cost is high because the equipment needs to be driven by power sources such as a speed reducer and a motor, the utility model provides the unpowered rotary drum filter which does not need to be driven by the power sources such as the speed reducer and the motor, can automatically clean the impurities adsorbed on a filtering hole, and has low operation cost and convenient maintenance.
According to the technical scheme, the unpowered rotary drum filter is provided with a box body, a rotary cage and a rotating shaft are arranged in the box body, a filter screen is arranged on the outer side of the rotary cage, a driving plate is uniformly distributed in the rotary cage, the rotary cage is connected with the box body through the rotating shaft, a water inlet pipe, a water outlet and a slag outlet are arranged on the box body, the water outlet is located below the slag outlet, an outlet of the water inlet pipe is located in the rotary cage, the outlet of the water inlet pipe is rotatable, a strip-shaped brush is arranged above the rotary cage, a backflushing device is arranged on the box body, a spraying pipe is arranged on the backflushing device, and the spraying pipe is arranged between the box body and the rotary cage.
Preferably, the backflushing device is provided with a backflushing pump, the box body is provided with a backflushing pipe, one end of the backflushing pipe is connected with the spraying pipe, and the other end of the backflushing pipe is connected with the outlet of the backflushing pump.
Preferably, a box cover is arranged at the top of the box body, an observation hole is further formed in the box body, and an exhaust valve is arranged at the bottom of the box body.
Preferably, the box body comprises an upper box body and a lower box body, and the upper box body is detachably connected with the lower box body.
Preferably, the slag hole and the water outlet are both arranged on the lower box body, the observation hole is arranged on the upper box body, and an observation hole cover is arranged on the observation hole.
The beneficial effects of the utility model are that,
(1) according to the technical scheme, the rotating cage is driven to rotate under the action of the gravity of sewage on the driving plate, impurities are intercepted to the outer side of the rotating cage by the filter screen, and are moved to the water outlet end while rotating under the impact of water flow and finally discharged through the slag outlet, the filtered water is discharged through the water outlet and can be collected into a water collecting tank or directly applied to other places, so that the recycling of water resources is realized under the condition that a driving device is not additionally arranged, the operation cost is low, the equipment investment is low, and the popularization can be more extensive;
(2) due to the arrangement of the backflushing device, the rotating cage can rotate and simultaneously wash the filter screen on the rotating cage during working, so that the filter screen is prevented from being blocked, and the backflushing device can be opened or closed according to actual needs, so that intermittent backflushing or continuous backflushing is realized; the inlet of the back flushing pump can be connected to the filtered water source, so that the water resource can be reused and saved;
(3) the water inlet pipe can rotate, and the sewage outlet direction can be adjusted by adjusting the angle of the water inlet pipe, so that the rotating speed of the rotating cage is changed, and the requirements of different rotating speeds are met;
(4) the box includes box and lower box, and goes up the box and be detachable connection with lower box, when needing to maintain, only need open the box can.
FIG. 1 is a schematic perspective view of an embodiment of the present invention in the configuration of FIG. 1;
FIG. 2 is a schematic perspective view of an embodiment of the present invention in the configuration of FIG. 2;
FIG. 3 is a front view of the structure of an embodiment of the present invention;
FIG. 4 is a top view of a structure of an embodiment of the present invention;
FIG. 5 is a left side view of the structure of an embodiment of the present invention;
FIG. 6 is a view A-A of an embodiment of the present invention;
FIG. 7 is a view B-B of an embodiment of the present invention;
FIG. 8 is a C-C view of an embodiment of the present invention.
The symbols in the drawings illustrate that:
1. an upper box body; 2. a box cover; 3. a manhole cover; 4. a lower box body; 5. a slag outlet; 6. a water outlet; 7. an evacuation valve; 8. a backwash pipe; 9. a water inlet pipe; 9.1. a corner section; 10. a strip-shaped brush; 11. a back flushing pump; 12. a rotating shaft; 13. rotating the cage; 14. a shower pipe; 15. filtering with a screen; 16. a drive plate.
The present invention will be further described with reference to the following examples.
As shown in fig. 1-8, the unpowered rotary drum filter is provided with a box body, a rotary cage 13 and a rotating shaft 12 are arranged in the box body, a filter screen 15 is arranged outside the rotary cage 13, a driving plate 16 is uniformly arranged in the rotary cage 13, and the rotary cage 13 is connected with the box body through the rotating shaft 12. The box includes box 1 and lower box 4, goes up box 1 and lower box 4 and is detachable connection, and box 1 is gone up in opening that can be convenient, takes out rotary cage 13, maintains or changes filter screen 15. Go up the upper portion of box 1 and be equipped with case lid 2, the side of going up box 1 is equipped with the observation hole, is equipped with observation handhole door 3 on the observation hole, still is equipped with inlet tube 9 on going up box 1, is equipped with slag notch 5 and delivery port 6 on the lower box 4, and delivery port 6 is located slag notch 5 below, and sewage is used from delivery port 6 process pipeline arrival header tank storage after handling. The export of inlet tube 9 is located the rotating cage 13, and inlet tube 9 exit is equipped with 90 bent angle sections 9.1, also can be the bent angle section 9.1 of other angles, through rotatory bent angle section 9.1, can change the angle that sewage strikes on rotating cage 13, changes the injection angle promptly, realizes the adjustment of impact force, and then changes rotating cage 13's rotational speed to satisfy the demand of different rotational speed operating modes.
The bar brush 10 is arranged above the rotating cage 13, the angle of the bar brush 10 is adjustable, and the density of the bristles on the bar brush 10 can be adjusted, so that the use requirements of different filter screens 15 or impurities are met, and the residual impurities stuck on the filter screens 15 can be effectively brushed. Be equipped with the recoil device on the box, the recoil device includes shower 14, backwash pipe 8 and recoil pump 11, and shower 14 is established between last box 1 and rotating cage 13, and 8 one ends of backwash pipe are connected with shower 14, and the other end and 11 exit linkage of recoil pump, and the entry of recoil pump 11 can be connected to in the header tank, realizes water resource reuse, water economy resource.
The water after being filtered is conveyed to the spray pipe 14 through the back flush pump 11, the rotating cage 13 and the filter screen 15 are sprayed and washed, the filter screen 15 is prevented from being blocked, and the aperture of the spray pipe 14 can be adjusted according to the actual impurity condition, so that a better washing effect is realized. The recoil device is provided with a control device, and can be opened or closed according to actual needs, so that intermittent recoil or continuous recoil is realized. The bottom of the lower box body 4 is provided with an emptying valve 7, so that residual water in the box body can be emptied in time, and the service life of the equipment is prolonged.
This technical scheme passes through sewage self action of gravity on drive plate 16, it is rotatory to drive rotating cage 13, impurity is intercepted the rotating cage 13 outside by filter screen 15, under the impact of rivers, impurity is rotatory while removing to the play water end, finally discharge through slag notch 5, water after the filtration is discharged through delivery port 6, can collect the header tank, perhaps direct application is to other places, the recycling that has realized the water resource under the condition that need not additionally to dispose drive arrangement, the running cost is low, the equipment investment is few, can obtain more extensive popularization.
However, the above description is only exemplary of the present invention, and the scope of the present invention should not be limited thereby, and the replacement of the equivalent components or the equivalent changes and modifications made according to the protection scope of the present invention should be covered by the claims of the present invention.