Quartz sand

The unique physical and chemical characteristics of quartz sand make IT play a pivotal role in aviation, aerospace, electronics, machinery and today's rapidly developing IT industry, especially its internal molecular chain structure, crystal shape and lattice change law. So that it has high temperature resistance, small thermal expansion coefficient, high insulation, corrosion resistance, piezoelectric effect, resonance effect and its unique optical properties, in many high-tech products play an increasingly important role.

Glass industry

Glass plate glass, float glass, glass products (glass jar, glass bottle, glass tube, etc.), optical glass, glass fiber, glass instruments, conductive glass, glass cloth and anti - ray special glass and other main raw materials.

ceramic

Ceramic and refractory porcelain blanks and glazes, kiln with high silicon brick, ordinary silicon brick and silicon carbide and other raw materials; Metallurgical silicon metal, ferrosilicon alloy and silicon aluminum alloy and other raw materials or additives flux concrete, cementitious materials, road building materials, artificial marble, cement physical performance test materials (namely cement standard sand).

chemical

The main raw materials, abrasive materials (sandblasting, hard abrasive paper, sand paper, emery cloth, etc.), sand cleaning, rust removal, removal of oxide skin processing electronic high-purity metal silicon, communication with optical fiber and other rubber, plastic filler (can improve the wear resistance). Coating filler can improve the weatherability of coating. The second is: Used in casting, forging, mechanical, metallurgy, heat treatment, steel structure, space truss structure, containers, ships, building, Bridges, mines, in areas such as deoxidization, rust removal and strengthen, forming, surface cleaning of eliminating stress and various profiles and roughness (hair) pretreatment before coating, electroplating, stone cutting, magnetic pill for casting, as heavy concrete and blast furnace refractories to add Agent to increase its wear resistance, high temperature resistance, anti-erosion, electrostatic shielding, radiation protection, oil well filter tank, counterweight, etc. Granite, marble surface treatment using high-quality quartz sand as raw material specially designed and produced for sports venues lawn special products, with high hardness, than major, particle size uniformity, small edges and corners, natural color and other characteristics, the artificial lawn damage is small, the formation of protection of grass hair, make the lawn more durable. The quartz sand is the ideal material for the use of modern track and field, football field, golf course and other artificial venues.

Water treatment filter material

Because of the three layers of filter material filter bed quartz sand particle size than double filter material quartz sand particles, and under the quartz sand layer there is a layer of fine heavy anthracite filter material, so in other conditions the same, and even some of the higher filtration speed, the water quality of the filter after the three layers of filter material filter than double filter material filter water quality is good. When using quartz sand, try to use with it.

Our country's execution of the vast majority of sewage treatment plant is the town sewage treatment plant pollutant discharge standard of level 1 B standard, and can be considerable in the implementation of the level of A standard to the biological nitrogen removal of wastewater, reduce the pollution to the subsequent receiving waters, the water can be used as water reuse, solve the problem of shortage of water resources in some areas.

Quartz sand filter

The tail water of the sewage treatment plant enters the bottom of the filter through the inlet pipe, and passes through the filter material layer from top to bottom after evenly distributing the water through the water distributor. During this process, the tail water is filtered to remove contaminants from the water. At the same time, the content of pollutants in the quartz sand filter material increases, and the degree of pollutants in the lower filter material layer is higher than that of the upper filter material. At this time, open the air lift pump located in the center of the filter, and lift the quartz sand filter material at the bottom to the sand washer at the top of the filter for cleaning. After cleaning, the filter sand is returned to the filter bed, and the pollutants produced by cleaning are discharged.

Quartz sand filter material in the lifting pump under the action of a top-down movement, the tail water mixing effect. Filter inside the filter material can be cleaned in time, anti-pollutant load impact ability is strong. Quartz sand filter special internal structure and its own operating characteristics, so that the coagulation, clarification, filtration in the same tank body can be completed.

Technical characteristics of quartz sand filter

(1) the quartz sand filter material layer is thicker, the filter tank is deeper, and the civil construction cost is higher.

(2) High filtration efficiency, good filtration effect, no need to stop backwashing, low operation cost.

(3) High head loss, generally need to set up secondary lifting pump room, increase the operation cost.

(4) The number of active sand filters can be flexibly increased or decreased according to the change of water quantity, which is mainly suitable for small-scale sewage treatment plants.

Active sand filter is a continuous filtration equipment which integrates flocculation, clarification and filtration. It is widely used in the field of drinking water, industrial water, advanced sewage treatment and reclaimed water reuse treatment. The system adopts the principle of upflow flow bed filtration and a single homogeneous filter material. Filtration and sand washing are carried out at the same time, which can operate continuously and automatically for 24 hours. The ingenious structure of sand lifting and sand washing replaces the traditional high-power backwashing system, and the energy consumption is extremely low.

Therefore, the upgrading of urban sewage treatment plants is the requirement of water environment protection, as well as the requirement of energy conservation and emission reduction proposed by the state.

Quartz sand filter material is using natural quartz mine as raw material, after crushing, washed fine sieve, etc, is the most widely used in water treatment industry, the largest amount of water purification materials, without impurities, compression wear-resisting, high mechanical strength, stable chemical performance, sewage capability, high efficiency, long cycle life, suitable for single, double filter tank, filter and ion exchanger, All the indicators have reached (CJ/T43-2005) standard.

Quartz sand filter material: mainly used in sewage treatment, with three to five years is no problem, as long as the prevention of quartz sand loss, it does not matter, because in sewage treatment, sludge can be aerobic or anaerobic breathing, the pollutants in sewage degradation.