How the utilization of natural stone?

In the construction sector, natural stone, as a non-renewable resources, but also need special attention. Along with technological development, new technologies, new processes, new materials emerging to provide our industry colleagues to provide good experiences and good measure of mutual exchanges, learn from, and thus can be widely implemented in the industry, rational use of the benefits the country.

Of non-metallic mineral reserves in the world rankings in the middle, that is not very non-rich. Generate a long era of natural stone, are non-renewable resources. But with the increased demand for nation-building and other areas, the use of natural stone has become increasingly popular. Especially in terms of architectural decoration, so efficient and reasonable utilization, will be valuable for the country to save more natural resources and help to improve the ecological environment.

At present, stone mining and processing enterprises, often only on the desolation rate, the volume ratio and processing techniques, while little attention to the comprehensive utilization of natural stone. Some engaged in stone mining, production, processing, construction workers, and even the engineering construction industry, including designers, the use of natural stone waste not enough attention is generally discarded as scrap.

According to statistics, 80-90 years of last century, the original marble factory Beijing China stone industry as a more advanced business representatives, and its stone production volume ratio can only reach 23%. Recent years the introduction of new technology, shortage of natural stone into a rate of volume ratio has greatly improved, but failed to reach 40%. Therefore, the reduction of natural stone in the mining and processing losses, in addition to active use of new technologies, new processes, new equipment to improve the operator's skill level and quality, the most important thing is the further development of the comprehensive utilization of natural stone, turning waste Po, variable harm into.

The comprehensive utilization of natural stone, approach is very broad. Only now being developed by the application and the comprehensive utilization projects involving the production of many aspects of life.

    Non-waste rock mining

The top of the ore body decorative materials and floor often other minerals, in which non-shortage stone. Generally in the mining, the surrounding rock can have a symbiotic mined ore. Be used. Areas such as Beijing Yanshan marble mine roof section (layer) often dolomite mine, Yunnan Dali Diancang Xuefeng marble mine roof section (layer) with talc mine. Ledge of chemical raw materials can be extracted from a large magma or filler for the metallurgical industry, are to take advantage of the ore body and can increase the economic efficiency of resources.

Town of Fangshan District, Beijing from 2001, long, can only be used to fill the gully to the original non-shortage of stone, the selection of qualified part of the chemical composition, supply Beijing Chemical Factory, production reached 1 million tons per year, can increase several million dollars.

    Non-standard rubble, gravel

Exploitation of natural stone in the process of around 50%, becomes a non-standard rubble and gravel, stone blocks on the national output of existing projections, and this is a very impressive figure, if fully utilized, the existing economic interests, but also to conserve resources. Its purpose is: as rubble stone construction made of concrete and gravel materials, building embankments, roads, walls, etc. to do mushroom.

Meters for the production of stone rubble and debris after the crushing, screening can be obtained by a variety of stone meters, and its color varieties, colorful. Is the production of artificial stone, terrazzo, stone and decorative water brush good raw materials.

For the production of artificial polyester resin plus natural stone and concrete blocks after mixing, vacuum vibration molding. Have made artificial marble, artificial granite blocks, and then by grinding, cutting and other processing techniques make decorative plates. 70s in the 20th century, the original cloud Guangdong Yunfu Stone Factory, Beijing plant is capable of producing artificial marble stone and a bulk exports. Currently, there are more than hundred medium-sized manufacturing enterprises with an annual output over a hundred million square meters, Yunfu also has developed into the artificial stone industry gathering in China.

Production of household products such as wood and stone furniture, cooking utensils, variety, selling fast, but also saves wood.

Used for carving, craft products, Dali, Yunnan Province, Fujian Province Hui'an County, Quyang, Fangshan District, Beijing, producing a long history of stone crafts, known as the reputation of the hometown of stone carving, the carving of the trees, flowers and other plants, lions, stone horses, stone birds, stone dogs and other animals; vases, tea sets, cooking utensils, lamps, wine, smoking and other daily necessities; handsome in appearance, many varieties of patterns, volume, sold home and abroad.

Meet the technological requirements of the part of the limestone, dolomite, diabase, etc., respectively for the glass, calcium carbide, ceramic, limestone, cast stone, cement, alkali and other raw materials.

    Corners more than expected

In the processing of natural stone in the process, there will be blocks of about 5% of the total gross board about 1 / 3 of the corners more than expected. If discarded as scrap, have to pay the economic costs out of, improper stacking also hinder environmental protection. In fact, more than expected use of these corners is also very extensive.

1. Cut into different shapes the small size of the tile, mosaic, for corridors, flower bed, bathroom and other small venues and small parts of the veneer, not only durable, but also clean, neat appearance.

2. Use of its natural form, set indoor and outdoor shop floors, walls and park walkways and so on. According to different varieties of texture, the use of color with the aesthetic principles, spliced ​​into round, square, triangle, animals and plants after the use of vivid images, even more fun, beautiful and pleasant.

3. For the production of floral and ice fight marble pattern. Stone is a different color mosaic of small tiles, National Cheng Kung University specifications sheet bonding; ice directly to the marble pattern of bits and pieces of different colors makes up a large size sheet, the shape of Spring thaw the ice, hence the name. The two splice plates with different features, if properly parquet, bonding properly, the value of no less authentic (large size) sheet.

4. For the production of electrical insulation materials. Compliance can be made of scrap electrical appliances gates boards, light switches, switchgear, etc., is the power industry one of the indispensable materials, its products very popular.

5. For road-way street strip. Town way street line of white natural stone mosaic of the plate, was outstanding, once and for all.

6. Made of small crafts, small daily necessities. Produced by more than expected lamp corner seat, desk plates, pen, ink stone, the town of feet, and a variety of painting the screen door handle and other tables, elegant and beautiful.

    Natural stone powder

The stone block and manufactured stone size board is expected to be processed into powder, with a variety of uses.

1. For the production of sand, foundry sand and waterproof material, such as: linoleum debonding powder, used for steel casting, easy stripping, gradually smooth and so on.

2. Chemical products packing filler and paint, construction and decoration painting and so on.

3. Instead of soda, used in tanning. Using this technology, can reduce labor intensity and improve the production environment, improve economic efficiency.
 
4. For the life of the accelerant and desulfurization of coal, coal in the life of 5 to 10% addition of marble powder, not only can save coal, combustion and can reduce the sulfur dioxide gas to escape, to improve the indoor and outdoor environment, energy conservation, improve economic efficiency.

5. Production welding powder was added. Slagging can play the role, to prevent the molten pool and the arc into oxygen and nitrogen.

    Waste rock slurry (slurry)

Stone processing plant in each process (sawing, grinding, cutting), all produce some waste rock slurry, should the random emissions, rather pollute the environment. If, after precipitation, dewatering, drying (or dried) and other related processes to deal with can be used as raw materials and asphalt cement filler can also be used as fillers such as use of chemical dyes.

Baiyun Town, Fangshan, Beijing Shiwo Shifen Chang, is to process the waste rock slurry treated as raw material for cement production, supply the cement plant Liulihe other Fangshan district, the annual output of up to twelve or tons of waste in the region about about 15% of the total rock slurry.