阅读说明：本技术 一种转盘过滤器反冲洗装置 (Backwashing device of rotary disc filter ) 是由 张旭恒 张红要 江川国 蔡建栋 李碧清 陈英浩 李韬 谭碧寒 阮俊 林活 于 2021-09-03 设计创作，主要内容包括：本发明公开了一种转盘过滤器反冲洗装置,包括滤池、过滤盘、驱动电机、支撑架和反冲泵；滤池内设有多个过滤盘；驱动电机用于驱动多个过滤盘同步转动；支撑架上设有导水管,多条导水管的多个反冲喷嘴分别与多个过滤盘的同侧相对；在置于相邻过滤盘之间的导水管上还设有多个防扩散喷嘴,多个防扩散喷嘴与多个反冲喷嘴分别设于导水管相对的两侧,并朝斜下喷射；反冲泵用于控制多个反冲喷嘴和多个防扩散喷嘴喷水；所以当污泥被反冲喷嘴冲刷掉落后,防扩散喷嘴能够对污泥进行向下喷射,从而加速了污泥的下沉,减少了污泥在过滤盘上的重新粘附,即切实解决了现有转盘过滤器反冲洗装置重复粘附率高的问题。(The invention discloses a backwashing device of a rotary disc filter, which comprises a filter tank, a filter disc, a driving motor, a support frame and a backwashing pump, wherein the filter tank is arranged on the filter disc; a plurality of filter discs are arranged in the filter chamber; the driving motor is used for driving the plurality of filter discs to synchronously rotate; the supporting frame is provided with a water guide pipe, and a plurality of backflushing nozzles of a plurality of water guide pipes are respectively opposite to the same side of the plurality of filter discs; a plurality of diffusion-proof nozzles are also arranged on the water guide pipe arranged between the adjacent filter discs, and the diffusion-proof nozzles and the backflushing nozzles are respectively arranged on two opposite sides of the water guide pipe and are sprayed obliquely downwards; the recoil pump is used for controlling the plurality of recoil nozzles and the plurality of anti-diffusion nozzles to spray water; therefore, after the sludge is flushed and fallen by the back flushing nozzle, the anti-diffusion nozzle can spray the sludge downwards, so that the sinking of the sludge is accelerated, the re-adhesion of the sludge on the filter disc is reduced, and the problem of high repeated adhesion rate of the existing back flushing device of the rotary disc filter is really solved.)

1. A backwashing device of a rotary disc filter is characterized in that,

comprises a filter tank, a filter disc, a driving motor, a support frame and a back flush pump;

a plurality of filter discs are arranged in the filter tank;

the plurality of filter discs are coaxially arranged on a rotating shaft of the driving motor;

the driving motor is used for driving the plurality of filter discs to synchronously rotate;

the support frame is arranged above the filter tank, a water guide pipe is arranged on the support frame, the water guide pipe is connected and communicated with the backflushing pump, a plurality of backflushing nozzles are arranged on the water guide pipe, the plurality of water guide pipes extend to the position opposite to the same side of the plurality of filter discs, and the plurality of backflushing nozzles of the plurality of water guide pipes are opposite to the same side of the plurality of filter discs respectively;

a plurality of diffusion-proof nozzles are arranged on the water guide pipe arranged between the adjacent filter discs, the diffusion-proof nozzles and the backflushing nozzles are respectively arranged on two opposite sides of the water guide pipe, and the spraying directions of the diffusion-proof nozzles face downwards in an inclined mode;

the recoil pump is connected and communicated with the plurality of recoil nozzles and the plurality of diffusion-proof nozzles, and is used for controlling the plurality of recoil nozzles and the plurality of diffusion-proof nozzles to spray water.

2. The rotary disc filter backwashing device of claim 1, wherein the diffusion preventing nozzle has a linear shape, and the diffusion preventing nozzle is configured to perform surface water spraying.

3. The rotary disc filter backwashing device according to any of claims 1 or 2, wherein an angle between the upper diffusion preventing nozzle and the vertical axis of the water conduit is larger than an angle between the lower diffusion preventing nozzle and the vertical axis of the water conduit.

4. The rotary disc filter backwashing device of claim 3, wherein the bottom end of the water conduit is also provided with the diffusion preventing nozzle, and the diffusion preventing nozzle at the bottom end of the water conduit is used for spraying water vertically downwards.

5. The rotary disc filter backwashing device of claim 3, wherein the uppermost diffusion preventing nozzle is movably connected with the water guide pipe with an adjustable spraying angle.

6. The rotary disc filter backflushing apparatus according to claim 5,

the water inlet end of the uppermost anti-diffusion nozzle is connected with a hose, and the hose is connected and communicated with the water guide pipe;

the water guide pipe is provided with a base and a rotating motor, the base is connected with the anti-diffusion nozzle in a rotating mode, and the rotating motor is used for driving the anti-diffusion nozzle to rotate.

Technical Field

The invention relates to the technical field of filter washing, in particular to a backwashing device of a rotary disc filter.

Background

In the existing backwashing device of the rotary disc filter, a backwashing pump is used for supplying water for a backwashing nozzle, so that high-pressure water flow is generated to spray a filter disc, sludge on the filter disc can fall off, but because various floaters with light mass exist in the sludge and the sinking speed of the floaters is low, the floaters are easy to adhere to the filter disc again in the process of floating on water, so that the repeated adhesion rate of the backwashing device of the rotary disc filter is too high, and a technical scheme capable of solving the problem is urgently needed.

Disclosure of Invention

The invention aims to provide a backwashing device of a rotary disc filter, which aims to solve the problem of high repeated adhesion rate of the existing backwashing device of the rotary disc filter.

In order to solve the technical problem, the invention provides a rotary disc filter backwashing device which comprises a filter tank, a filter disc, a driving motor, a support frame and a backwashing pump, wherein the filter tank is provided with a filter chamber; a plurality of filter discs are arranged in the filter tank; the plurality of filter discs are coaxially arranged on a rotating shaft of the driving motor; the driving motor is used for driving the plurality of filter discs to synchronously rotate; the support frame is arranged above the filter tank, a water guide pipe is arranged on the support frame, the water guide pipe is connected and communicated with the backflushing pump, a plurality of backflushing nozzles are arranged on the water guide pipe, the plurality of water guide pipes extend to the position opposite to the same side of the plurality of filter discs, and the plurality of backflushing nozzles of the plurality of water guide pipes are opposite to the same side of the plurality of filter discs respectively; a plurality of diffusion-proof nozzles are arranged on the water guide pipe arranged between the adjacent filter discs, the diffusion-proof nozzles and the backflushing nozzles are respectively arranged on two opposite sides of the water guide pipe, and the spraying directions of the diffusion-proof nozzles face downwards in an inclined mode; the recoil pump is connected and communicated with the plurality of recoil nozzles and the plurality of diffusion-proof nozzles, and is used for controlling the plurality of recoil nozzles and the plurality of diffusion-proof nozzles to spray water.

In one embodiment, the nozzle opening of the diffusion preventing nozzle is linear in shape, and the diffusion preventing nozzle is used for spraying water in a planar mode.

In one embodiment, the included angle between the diffusion preventing nozzle arranged above and the vertical axis of the water guide pipe is larger than the included angle between the diffusion preventing nozzle arranged below and the vertical axis of the water guide pipe.

In one embodiment, the bottom end of the water conduit is also provided with the anti-diffusion nozzle, and the anti-diffusion nozzle at the bottom end of the water conduit is used for spraying water vertically downwards.

In one embodiment, the uppermost anti-diffusion nozzle is movably connected with the water guide pipe in an adjustable spraying angle.

In one embodiment, a hose is connected to the water inlet end of the uppermost diffusion-preventing nozzle, and the hose is connected and communicated with the water guide pipe; the water guide pipe is provided with a base and a rotating motor, the base is connected with the anti-diffusion nozzle in a rotating mode, and the rotating motor is used for driving the anti-diffusion nozzle to rotate.

The invention has the following beneficial effects:

because it is adjacent to arrange in still be equipped with a plurality of diffusion nozzle of preventing on the aqueduct between the filter disc, it is a plurality of diffusion nozzle and a plurality of prevent diffusion nozzle and a plurality of recoil nozzle locates respectively the both sides that the aqueduct is relative, it is a plurality of prevent diffusion nozzle's injection direction slant down, so after mud is washed away by recoil nozzle, prevent diffusion nozzle and can carry out the downward injection to mud to accelerated sinking of mud, reduced the re-adhesion of mud on the filter disc, solved the problem that current rotary disc filter back flush device repeated adhesion rate is high promptly conscientiously.

Drawings

In order to more clearly illustrate the technical solution of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic diagram of a structure provided by an embodiment of the present invention;

FIG. 2 is a schematic view of the structure of part A of FIG. 1;

FIG. 3 is a schematic diagram of the internal side view structure of FIG. 1;

FIG. 4 is a schematic view of the internal elevation structure of FIG. 1;

FIG. 5 is a schematic view of the anti-diffusion nozzle arrangement of FIG. 1;

fig. 6 is a schematic structural diagram of part B of fig. 5.

The reference numbers are as follows:

10. a filter chamber;

20. a filter tray;

30. a drive motor;

40. a support frame; 41. a water conduit; 42. a recoil nozzle; 43. a diffusion preventing nozzle; 44. a hose; 45. a base; 46. rotating the motor;

50. a back flushing pump.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

The invention provides a backwashing device of a rotary disc filter, which is shown in figures 1 to 5 and comprises a filter tank 10, a filter disc 20, a driving motor 30, a supporting frame 40 and a backwashing pump 50; a plurality of filter discs 20 are arranged in the filter chamber 10; the plurality of filter discs 20 are coaxially arranged on a rotating shaft of the driving motor 30; the driving motor 30 is used for driving the plurality of filter discs 20 to synchronously rotate; the supporting frame 40 is arranged above the filtering tank 10, the supporting frame 40 is provided with a water guide pipe 41, the water guide pipe 41 is connected and communicated with the backflushing pump 50, the water guide pipe 41 is provided with a plurality of backflushing nozzles 42, the plurality of water guide pipes 41 extend to be opposite to the same side of the plurality of filtering discs 20, and the plurality of backflushing nozzles 42 of the plurality of water guide pipes 41 are respectively opposite to the same side of the plurality of filtering discs 20; a plurality of diffusion preventing nozzles 43 are further arranged on the water guide pipe 41 arranged between the adjacent filter discs 20, the diffusion preventing nozzles 43 and the backflushing nozzles 42 are respectively arranged on two opposite sides of the water guide pipe 41, and the spraying directions of the diffusion preventing nozzles 43 face downwards in an inclined mode; the recoil pump 50 is connected and communicated with the plurality of recoil nozzles 42 and the plurality of diffusion preventing nozzles 43, and the recoil pump 50 is used for controlling the plurality of recoil nozzles 42 and the plurality of diffusion preventing nozzles 43 to spray water.

Assuming that the flow direction of the water in the filter chamber 10 is from left to right, impurities such as sludge are accumulated on the left side surface of the filter disc 20; if the filter disc 20 needs to be cleaned, the driving motor 30 can be used to control the filter disc 20 to rotate until the part of the filter disc 20 which needs to be cleaned is opposite to the backflushing nozzle 42, then the backflushing nozzle 42 can be used to spray high-pressure water flow from the right to the left, and the sludge impurities on the filter disc 20 can fall into the water.

In the direction shown in fig. 5, after being flushed by the back flushing nozzle 42, the sludge impurities on the right filter disc 20 will fall between the right side of the water guiding pipe 41 and the right filter disc 20, and at this time, the diffusion preventing nozzle 43 sprays towards the lower right, so that impact force can be applied to the sludge impurities, thereby accelerating the sinking of the sludge, reducing the re-adhesion of the sludge on the filter disc 20, and practically solving the problem of high repeated adhesion rate of the existing back flushing device for the rotary disc filter.

Preferably, in this embodiment, the nozzle opening of the diffusion preventing nozzle 43 is formed linearly, and the diffusion preventing nozzle 43 is used to perform surface water spraying.

Because the nozzle of the anti-diffusion nozzle 43 is in a linear shape, after the high-pressure water flows through the anti-diffusion nozzle 43 to be sprayed out, the water flow is not in a column shape any more, but a thin water film is formed, and planar water spraying is realized; after the arrangement mode is adopted, the coverage range of the water film is wider, so that fewer diffusion-preventing nozzles 43 can be arranged to impact sludge impurities to sink, and the impact force of the planar water spray is far smaller than that of the columnar water spray, so that the sludge rolling caused by the over-strong impact force is avoided.

As shown in fig. 5, the angle between the upper diffusion preventing nozzle 43 and the vertical axis of the water guiding pipe 41 is larger than the angle between the lower diffusion preventing nozzle 43 and the vertical axis of the water guiding pipe 41.

After the arrangement mode is adopted, the jet distance of the upper anti-diffusion nozzle 43 is greater than that of the lower anti-diffusion nozzle 43, so that the impact force exerted by the upper anti-diffusion nozzle 43 on sludge impurities is weaker, the impact force exerted by the lower anti-diffusion nozzle 43 on sludge is stronger, the upper anti-diffusion nozzle 43 can exert a soft impact force on sludge to control the sludge to sink, the lower anti-diffusion nozzle 43 can control underwater sludge to sink continuously through the stronger impact force, and the continuity and the efficiency of sludge sinking are greatly improved.

As shown in fig. 5, the bottom end of the water conduit 41 is also provided with a diffusion preventing nozzle 43, and the diffusion preventing nozzle 43 at the bottom end of the water conduit 41 is used for spraying water vertically downward.

After the arrangement mode is adopted, the anti-diffusion nozzle 43 at the bottom end of the water guide pipe 41 equivalently forms a water film, so that floating objects are intercepted to move towards the adjacent filter disc 20, and the repeated adhesion rate of the rotary disc filter backwashing device is further reduced.

As shown in fig. 5 and 6, the uppermost diffusion preventing nozzle 43 is movably connected to the water guide pipe 41 with an adjustable spray angle.

After the arrangement, the uppermost anti-diffusion nozzle 43 can be controlled to perform the sweeping and spraying from top to bottom, for example, the uppermost anti-diffusion nozzle 43 can be controlled to firstly perform the sweeping and spraying from top to bottom on the filter disc 20 so as to sweep the residual sludge on the filter disc 20 down, and then the sweeping and spraying sludge is gradually far away from the filter disc 20 in the process that the uppermost anti-diffusion nozzle 43 continues to move down, namely, the repeated adhesion rate of the rotary disc filter backwashing device is further reduced.

In order to realize the angle adjustment of the uppermost diffusion-preventing nozzle 43, as shown in fig. 5 and 6, the water inlet end of the uppermost diffusion-preventing nozzle 43 is connected to a hose 44, and the hose 44 is connected to and communicated with the water conduit 41; the water guide pipe 41 is provided with a base 45 and a rotating motor 46, the base 45 is rotatably connected with the uppermost diffusion preventing nozzle 43, the rotating motor 46 is used for driving the diffusion preventing nozzle 43 to rotate, namely, a rotating shaft of the rotating motor 46 is used as a rotating center of the uppermost diffusion preventing nozzle 43, and the spraying angle of the uppermost diffusion preventing nozzle 43 can be controlled by controlling the clockwise and anticlockwise rotation of the rotating motor 46.

While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.