CN113896308A - Self-cleaning rotary grid plate - Google Patents
Self-cleaning rotary grid plate Download PDFInfo
- Publication number
- CN113896308A CN113896308A CN202111367320.7A CN202111367320A CN113896308A CN 113896308 A CN113896308 A CN 113896308A CN 202111367320 A CN202111367320 A CN 202111367320A CN 113896308 A CN113896308 A CN 113896308A
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- CN
- China
- Prior art keywords
- grid plate
- self
- plate body
- shaft
- cleaning
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000004140 cleaning Methods 0.000 title claims abstract description 31
- 239000003638 chemical reducing agent Substances 0.000 claims description 4
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 230000000712 assembly Effects 0.000 claims description 2
- 238000000429 assembly Methods 0.000 claims description 2
- 238000005189 flocculation Methods 0.000 abstract description 16
- 230000016615 flocculation Effects 0.000 abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 11
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 5
- 239000010802 sludge Substances 0.000 abstract description 5
- 230000009467 reduction Effects 0.000 abstract description 4
- 238000009825 accumulation Methods 0.000 abstract description 2
- 238000004062 sedimentation Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 229940037003 alum Drugs 0.000 description 2
- 239000003651 drinking water Substances 0.000 description 2
- 235000020188 drinking water Nutrition 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5281—Installations for water purification using chemical agents
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention 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 invention 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
Technical Field
The invention 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.
Disclosure of Invention
The invention aims to provide a self-cleaning rotary grid plate, which can be cleaned without taking out the grid plate.
The purpose of the invention 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 invention has the following advantages:
1. according to the invention, 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 invention, 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 invention 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 invention, 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 invention 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 invention 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 invention, and detailed embodiments and specific operation processes are given, but the scope of the invention 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111367320.7A CN113896308A (en) | 2021-11-18 | 2021-11-18 | Self-cleaning rotary grid plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111367320.7A CN113896308A (en) | 2021-11-18 | 2021-11-18 | Self-cleaning rotary grid plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113896308A true CN113896308A (en) | 2022-01-07 |
Family
ID=79194520
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111367320.7A Pending CN113896308A (en) | 2021-11-18 | 2021-11-18 | Self-cleaning rotary grid plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113896308A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102126773A (en) * | 2010-11-16 | 2011-07-20 | 同济大学 | Central gridding flocculation well |
| CN205953622U (en) * | 2016-03-29 | 2017-02-15 | 哈尔滨市多相水处理技术有限公司 | Modular vortex street aperture eye net response device |
| CN112551664A (en) * | 2020-12-15 | 2021-03-26 | 浦华环保有限公司 | Grid type stirrer |
| CN216662577U (en) * | 2021-11-18 | 2022-06-03 | 同济大学建筑设计研究院(集团)有限公司 | Self-cleaning rotary grid plate |
-
2021
- 2021-11-18 CN CN202111367320.7A patent/CN113896308A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102126773A (en) * | 2010-11-16 | 2011-07-20 | 同济大学 | Central gridding flocculation well |
| CN205953622U (en) * | 2016-03-29 | 2017-02-15 | 哈尔滨市多相水处理技术有限公司 | Modular vortex street aperture eye net response device |
| CN112551664A (en) * | 2020-12-15 | 2021-03-26 | 浦华环保有限公司 | Grid type stirrer |
| CN216662577U (en) * | 2021-11-18 | 2022-06-03 | 同济大学建筑设计研究院(集团)有限公司 | Self-cleaning rotary grid plate |
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