Jinan Snow White Sand Supplier
If the crushed debris is not washed away but deposited on the surface of the filter layer, the water yield will increase. Friction resistance, reduce filtration cycle time, and reduce water flow. Therefore, various mechanical properties of filter materials should be manipulated. When it is very large, the fine suspended solids will be based on the filter layer. It is not easy to loosen the filter layer during backwashing. The backwashing is not complete, and it is very easy to harden the bottom. The running water is uneven, resulting in the reduction of water bodies and the rapid invalidation of the filtering equipment; If the particle size is too small, the flow friction resistance of water will be very large, and the filter layer is easily blocked by floating solids in the whole process of filtration, thus increasing water loss too quickly.
Jinan Snow White Sand Supplier
In the case of pure water purification treatment, the general application time period will produce some relatively. In the case of pure water purification, everyone's water resources are relatively clean, generally all surface water, precipitation and drinking water. This water quality is relatively clean, so there are relatively few residues and organic compounds, so the time period used is relatively long, and the general replacement cycle is once in 1-2 years. It is the quartz sand in the reclaimed water treatment. The goal of reclaimed water treatment is to save water and use it repeatedly. Then the quality of reclaimed water is relatively poor. Generally, the replacement cycle is about 12 months.
Jinan Snow White Sand Supplier
The flame retardancy of quartz sand can be indicated by its sintering point, that is, the temperature at which the test material is gradually melted and sintered. Sintering point refers to the temperature at which the surface of raw sand particles or the mixture between sand particles gradually melts. The sintering point test can be carried out in various continuous high temperature tubular heating furnaces, and the temperature should be controlled to 1350 ℃. Before the test, the electric furnace is heated to the predetermined temperature, and then the dried test materials are put into the calcined porcelain boat. The temperature of gradual test can be determined from 1000 ℃ or based on practical experience. During the whole process of the test, the porcelain boat equipped with test materials gradually pushed the furnace, insulated for 5min at the required temperature, and then gradually pulled the porcelain boat out of the furnace.
Jinan Snow White Sand Supplier
Mortar layer is a paint film that must be operated in the epoxy resin floor engineering project with superior technical and professional performance. In many floors with net heavy pressure, there are many times of construction plan of mortar intermediate coating engineering. According to the high toughness and high wear resistance of quartz sand, all floors have good practical effects of compression and wear resistance, and improve the compressive strength under high impact force. It can be said that quartz sand is a cheap filling raw material that can rapidly improve the mechanical properties of the floor. The intermediate coating strengthened by quartz sand makes all floors more stable and firm.
Jinan Snow White Sand Supplier
If refined textured sand is selected, a new filter element needs to be built to make the quartz sand evenly distributed, which can effectively prevent surface blocking and reasonably filter stains. If the setting is effective, it can also filter to standard materials at one time. If the setting is effective and the layout is reasonable, it can generally give full play to its relatively large green energy. Generally, 15-20 meters are filtered every hour, And try to control it within 50 hours. For the use of quartz sand, the actual effect of very balanced particle size distribution is naturally more ideal. The larger the particle size, the easier it is to clean. If there are fine particles, they should be cleaned continuously, and then repeatedly cleaned with air and water. The actual effect of water cleaning can be improved by using the friction force and impact force between particles.
