Mechanical grid plays an important role in sewage treatment, it is mainly used to intercept and remove rough floating debris in the water, such as weeds, branches, garbage, fibers, plastics, etc., to protect the impeller of the water pump and reduce the processing load of the subsequent process. In addition, the mechanical grid can also remove solid waste in sewage, reduce the treatment load of the subsequent water treatment process, protect pipelines and sewage treatment equipment, improve sewage treatment efficiency, reduce environmental pollution, and reduce operating costs.
Mechanical grid decontamination equipment is generally used in sewage treatment plants at the inlet of sewage treatment channels or lifting pumping station sump inlets. Its main function is to screen, eliminate and collect the solid waste in the sewage to ensure the normal operation of the follow-up treatment equipment and improve the treatment effect.
In addition, the mechanical grid decontamination equipment also has the advantages of large treatment capacity and adaptability to different types of sewage treatment sites. The spacing of the equipment can be flexibly arranged according to the actual situation of the sewage treatment plant, which occupies a small space and has a wide range of applications.
In general, mechanical grid decontamination equipment plays an important role in the sewage treatment industry and is one of the indispensable environmental protection equipment. In addition, the use of mechanical grids can also improve the degree of automation of the sewage treatment process, reduce manual intervention, reduce labor intensity, and improve work efficiency. At the same time, regular maintenance and cleaning of the mechanical grille can ensure its normal operation, prolong its service life, and reduce maintenance costs.
When selecting a mechanical grid, it is necessary to comprehensively consider the parameters such as water quantity, water quality, and grid spacing, and select the appropriate mechanical grid model and specifications. At the same time, in the process of use, it is necessary to operate in strict accordance with the operating procedures, regularly check the operation status of the mechanical grid, and find and solve problems in time to ensure its long-term stable operation.
In short, mechanical grids play an important role in sewage treatment, which can not only improve the effect of sewage treatment, but also reduce operating costs and protect the environment. With the continuous development of science and technology, it is believed that more advanced and efficient mechanical grid technology will be applied to the field of sewage treatment in the future.
The installation method of the mechanical grille is as follows:
1.Foundation acceptance: inspection and acceptance should be carried out in accordance with the design drawings and the external dimensions of the mechanical grid, focusing on the geometric size of the channel, the verticality of the side wall, the elevation and horizontality of the bottom of the channel. The plane position deviation of the grille installation should be less than 20mm, the elevation deviation should not be more than 20mm, and the parallelism deviation of the two side slots should not be more than 20mm.
2.Foundation pay-off: According to the equipment plane position map, the installation angle line of the mechanical grid is marked on the side wall of the channel, and the trigonometric function is used for verification.
3.Set up the tool: hoist the mechanical grid into the channel as a whole, and align the fixed grid in combination with the bottom, upper part and angle line of the mechanical grid.
4.Transmission device installation: The parallelism and coaxiality of the transmission shaft and transmission wheel should be adjusted within the range of deviation, and the tightness of the transmission chain should be adjusted to prevent the grille from deviating or derailing during the test run of the single machine.
5.The wire rope traction coarse grid decontamination machine is fixed with foundation bolts between the grid frame and the canal side wall, and the bottom of the grid and the bottom of the canal, as well as between the guide rails on both sides or the grid support frame and the canal side wall are sealed with secondary grouting bolts.
6.Stepped fine grid decontamination machine, slag screw conveyor compactor should cooperate with the fine grid to determine the position of the feed port and installation height, its total length can be adjusted according to the design drawing, the machine drainage pipe is connected to the grid groove nearby. The slag discharge bell can be processed into a circular shape at the top and bottom, and then connected with the conveyor according to the installation site.
7.Inspection and commissioning: After the equipment is installed, under the condition of no water, no-load operation for 2 hours, the transmission should be stable, there is no jamming, sudden jump, and the overload protection device is sensitive and reliable. The measured motor current does not exceed the rated value, the three-phase current is balanced, and the temperature of all bearings and motors is normal. Carry out on-site load test, under the condition of maximum design water level, test the decontamination effect, and the garbage on the rake should not fall back into the well.
The above are the installation steps of the mechanical grille for your reference, and it is recommended to adjust it according to the actual situation.