CN216662577U - Self-cleaning rotary grid plate - Google Patents

Abstract

The utility model relates to a self-cleaning rotary grid plate, which comprises a grid plate body (1), a rotating shaft (2) and a driving assembly (3); the grid plate driving mechanism is characterized in that the rotating shaft (2) is arranged on the grid plate body (1) and connected with the driving assembly (3), and the grid plate body (1) is rotatably arranged in the vertical shaft (4) through the rotating shaft (2). Compared with the prior art, the utility model can effectively avoid the influence on flocculation effect caused by mesh reduction or blockage of the grid plate due to sludge sedimentation and accumulation, simultaneously avoid the problem that the flocculation tank needs to be emptied to stop production in each desilting, effectively improve the water quality stability and reduce the workload of manual desilting.

Description

Self-cleaning rotary grid plate

Technical Field

The utility model relates to the technical field of drinking water treatment, in particular to a self-cleaning rotary grid plate.

Background

The flocculation tank in the drinking water treatment field mainly has grid flocculation and folded plate flocculation, wherein the grid flocculation tank is widely applied to various large and medium water plants in China due to the advantages of convenient installation, simple structure and the like. The grid flocculation tank is composed of a plurality of grid shafts, a plurality of layers of grid plates are arranged in each grid shaft and are staggered up and down to form a serial channel, and the grids form a speed gradient when passing water to start flocculation. Along with the time lapse, flocculation mud will progressively subside the adhesion on grid plate surface, and the mesh progressively dwindles or even blocks up, and the via hole velocity of flow increases, and velocity gradient changes to cause the unable gathering of tiny alum blossom, big alum blossom fracture, the flocculation effect variation, and then the condition of influence treatment water quality. When taking place above-mentioned condition, just need wash the maintenance to the grid plate, at present, the net of most water works all is independent installation, is fixed in the shaft, and during manual cleaning, at first need carry out the shut down to the production line, with flocculation basin emptying, adopt high-pressure squirt or artifical entering shaft in wash, the production influence is big, and the manual operation degree of difficulty is big. According to the most cases in recent years, the problem that the grid plate of the flocculation tank is difficult to clean and maintain exists in a large quantity, and due to the urban water supply relationship, a water plant generally has to stop production or reduce production.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a self-cleaning rotary grid plate, which can be cleaned without taking out the grid plate.

The purpose of the utility model can be realized by the following technical scheme: a self-cleaning rotary grid plate comprises a grid plate body, a rotating shaft and a driving assembly; the rotating shaft is arranged on the grid plate body and connected with the driving assembly, and the grid plate body is rotatably arranged in the shaft through the rotating shaft.

Preferably, the rotating shaft is arranged at the middle position of the grid plate body, and the axis of the rotating shaft is parallel to the surface of the grid plate body.

Preferably, the rotating shaft is integrally formed with the grid plate body.

Preferably, the drive assembly is provided on a wall of a shaft.

Preferably, the two ends of the rotating shaft are symmetrically provided with driving components.

Preferably, the drive assembly comprises a servo motor.

Further preferably, a PLC controller is provided on the servo motor.

Preferably, the driving assembly is connected with a motor forward and reverse rotation control circuit.

Preferably, a gap is left between the grid plate body and the inner wall of the shaft.

Preferably, a speed reducer and a coupling are sequentially arranged between the driving assembly and the rotating shaft.

Further preferably, the servo motor in the driving assembly is connected with a speed reducer, and the speed reducer is connected with the rotating shaft through a coupling.

Compared with the prior art, the utility model has the following advantages:

1. according to the utility model, through the arrangement of the rotating shaft and the driving assembly, the automatic rotation of the grid plate can be realized, the flocculated sludge deposited and adhered on the surface of the grid plate is removed by means of the flow of water in the vertical shaft and the centrifugal force generated when the grid plate rotates, the automatic cleaning of the grid plate is realized, the grid plate does not need to be taken out, production halt or high-pressure water guns and manual cleaning are not needed, the manual investment is reduced, the maintenance cost is reduced, the long-term stability of the effluent quality is ensured, and the normal operation of a water plant is ensured;

2. according to the utility model, the driving assemblies at two ends of the rotating shaft are symmetrically arranged, so that the stability and power of the rotating process are improved, and sufficient centrifugal force is provided for the self-cleaning process;

3. the utility model can realize the positive rotation and the reverse rotation of the rotating shaft by the arrangement of the servo motor, thereby improving the cleaning effect;

4. according to the utility model, through the arrangement of the PLC, the on-off, the rotating speed, the steering and the like of the motor can be controlled, and the controllability of the self-cleaning process is improved;

5. the utility model can effectively avoid the influence on the flocculation effect caused by mesh reduction or blockage of the grid plate due to sludge sedimentation and accumulation, simultaneously avoid the problem that the flocculation tank needs to be emptied to stop production in each desilting, effectively improve the water quality stability and reduce the workload of manual desilting.

Drawings

FIG. 1 is a plan view of a self-cleaning rotating grid plate according to the present invention;

FIG. 2 is a front view of a self-cleaning rotating grid plate of the present invention;

FIG. 3 is a schematic view of the installation of the self-cleaning rotating grid plate of the present invention within a shaft;

in the figure: 1-grid plate body, 2-rotating shaft, 3-driving component and 4-vertical shaft.

Detailed Description

The utility model is described in detail below with reference to the figures and specific embodiments. The following examples are carried out on the premise of the technical scheme of the utility model, and detailed embodiments and specific operation processes are given, but the scope of the utility model is not limited to the following examples.

Example 1

A self-cleaning rotary grid plate is arranged in a shaft 4, and the structure of the self-cleaning rotary grid plate is shown in figures 1-3, and the self-cleaning rotary grid plate comprises a grid plate body 1, a rotating shaft 2 and a driving assembly 3. Wherein, axis of rotation 2 sets firmly in the middle of net plate body 1, and 2 both ends of axis of rotation are connected with drive assembly 3 respectively, and drive assembly 3 sets up on the wall of a well of shaft 4. In this embodiment, drive assembly 3 is the servo motor who is equipped with the PLC controller, and this servo motor is connected with the reduction gear, and the reduction gear passes through the shaft coupling and links to each other with axis of rotation 2 to rotate the rotation of turning into stable, the relatively lower axis of rotation of speed with the motor, and then drive the controllable rotation of grid plate body 1 in shaft 4.

When needing to be clean, servo motor opens, axis of rotation 2 drives grid plate body 1 and carries out the rotation, in order to improve automatically cleaning effect, accessible PLC controller control servo motor carries out corotation in proper order and upset, turns to 360 at every turn, and the flocculation sludge on grid plate body 1 surface of deposit adhesion is washed away through the shearing force of rivers, and mud falls into shaft 4 bottom, and is repeated many times, and until the flocculation sludge of grid plate body 1 surface settlement adhesion gets rid of totally.

Example 2

A self-cleaning rotary grid plate is characterized in that a driving assembly 3 is a motor connected with a motor forward and reverse rotation control circuit, and the rest of the structure is the same as that of embodiment 1. The motor forward and backward control circuit of the present embodiment has the structure as described in chinese patent CN202020215508.4, so as to reduce the probability of motor rotation abnormality.

Example 3

The utility model provides a rotatory grid plate of automatically cleaning, sets up the photoelectric sensor who is used for detecting mud density on grid plate body 1, and all the other structures are the same with embodiment 1, and photoelectric sensor and PLC controller signal connection, and after the mud volume on grid plate body 1 surface reached the setting value, the PLC controller started servo motor and rotated grid plate body 1.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art should make improvements and modifications within the scope of the present invention based on the disclosure of the present invention.

Claims (10)

1. A self-cleaning rotary grid plate is characterized by comprising a grid plate body (1), a rotating shaft (2) and a driving assembly (3); the grid plate driving mechanism is characterized in that the rotating shaft (2) is arranged on the grid plate body (1) and connected with the driving assembly (3), and the grid plate body (1) is rotatably arranged in the vertical shaft (4) through the rotating shaft (2).

2. Self-cleaning rotating grid plate according to claim 1, wherein the rotation shaft (2) is arranged in the middle of the grid plate body (1), the axis of the rotation shaft (2) being parallel to the surface of the grid plate body (1).

3. A self-cleaning rotating grid plate according to claim 1, wherein the rotation shaft (2) is integrally formed with the grid plate body (1).

4. A self-cleaning rotating grid plate according to claim 1, wherein the drive assembly (3) is arranged on the wall of a shaft (4).

5. Self-cleaning rotating grid plate according to claim 1, wherein the drive assemblies (3) are symmetrically arranged at both ends of the rotating shaft (2).

6. A self-cleaning rotating grid plate according to claim 1, wherein the drive assembly (3) comprises a servo motor.

7. A self-cleaning rotating grid plate according to claim 6, wherein a PLC controller is provided on said servo motor.

8. A self-cleaning rotary grid plate according to claim 1, wherein the drive assembly (3) is connected to a motor counter-rotating control circuit.

9. A self-cleaning rotating grid plate according to claim 1, wherein a gap is left between the grid plate body (1) and the inner wall of the shaft (4).

10. Self-cleaning rotating grid plate according to claim 1, wherein a speed reducer and a coupling are arranged between the driving assembly (3) and the rotating shaft (2) in sequence.

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