Yellow pebble

Pebbles, as a kind of natural stone material, from after millions of years ago, the earth's crust movement produced by ancient riverbed uplift sand hill and experiencing the impact flash floods, water handling in the process of continuous extrusion and friction. In tens of thousands of years of vicissitudes of life in the process of evolution, they endure waves playing water sports, be gravel friction collision lost irregular edges, and sediment were buried deep beneath the ground again silent for ten million years. The cobblestone main chemical composition is sio2, followed by a small amount of ferric oxide and trace amounts of manganese, copper, aluminum, magnesium and other elements and compounds. They themselves have different colors, such as offering for iron, copper is blue, manganese is purple, yellow pulp translucent silica gel for stone, jade color contain green mineral and so on; Because of these pigment ion into silicon dioxide hydrothermal type and different content, thus presents the ever-changing shade and depth of color, make pebbles present a black, white, yellow, red, dark green, such as its color.

Pebbles type USES

Pebbles products are: natural color mechanisms pebbles, pebble, of rain flower stones, dry spray glued stone, stone, stone building, the petrified wood, cultural stone, natural color stone and other building decoration materials and interior decoration with advanced dyeing sand, non-toxic, tasteless, no discoloration. Quality hard, bright colour and lustre of primitive simplicity, compressive, wear-resisting corrosion resistance characteristics of natural stone is a kind of ideal green building materials.

Pebbles of use:

Pebbles are widely used in public buildings, villas, garden architecture, paved roads, parks, rockery, bonsai filling materials, garden art, and other advanced superstructure. It is disseminating ancient Oriental culture and western classical, elegant, natural style.

Pebbles for water purification, sewage treatment, electric power, the botanical garden project provides the high quality material. Also for ceramics, precision casting, papermaking, grinding, chemical, monocrystalline silicon provide raw and auxiliary materials, national defence, etc.

Nanjing of rain flower stones physical parameters: material: more than 95% of silica (SiO2).

Performance parameters: the surface finish is 98%, the compressive strength is more than 600 Kg/M2.

Standard transformer pebbles

Ministerial standard issued by the ministry of construction has a regulation, lower large oil-immersed transformer should be equipped with oil storage pool, area was slightly greater than the transformer of plane, the depth of 1 m or so, paved cobblestone, 8 -- 10 cm in diameter main purpose is to absorb the transformer oil.

Relevant standards:

Electric power equipment typical sections 7.3.4 in fire fighting procedures DL5027-1993 to 50-80 - mm.

"3-110 kv high voltage power distribution equipment design standard" (GB 50060-92) article 5.4.5 storage pool should be laid pebble layer thickness is not less than 250 mm, the cobblestone diameter should be 50-80 - mm.

About the pebble distribution:

Domestic main origin of rain flower stones from nanjing, jiangsu area, the middle and lower reaches of the Yangtze river region resources more abundant, more performance for deposit.

In addition the rest of the pebble resources are relatively abundant, including shandong, liaoning, north, south, including guizhou, chongqing, guangxi and other places, pebble resources are each has its characteristics, and variety.

The pebble of guizhou and guangxi resources due to historical reasons, so resource reservation is relatively perfect, species are abundant.

Southwest large-scale pebble is more, this kind of pebble large size, shape, especially suitable for used as a landmark of feng shui culture stone or rock.