Reported by Liu Jian and Wu Min (www.xnnews.com.cn)
On September 3, the production of the crushed stones in the Shigang Quarry in the Tanghu Town of Tongcheng County was transported to the county construction sites incessantly. The quarry originally only produced big stones for cement plant. Shigang village invested 1,000,000 Yuan with the support of Yuli Group to build the gravel plant. Up to now, the Tanghu Town had established 150 building materials enterprises with orderly development and recycling utilization on the basis of the mineral resources of limestone. From January to August, the building materials industry with an output value of the whole town had reached 100 million Yuan.
The Tanghu Town was rich in mineral resources, especially large reserves of limestone, coal, vanadium etc. In order to develop the economy rapidly and build the resource center into a strong economic town, it focused on optimizing the allocation of resources; in accordance with the requirements of the sustainable development, from the start of rectifying and standardizing the order in mining industry, it made efforts to promote the strict management of limestone resources, specification mining, further development and fine processing; it guided and promoted the scientific conservation of the limestone resources, achieved full layer mining of the ore on the scale of mining area and utilized by grade and achieved the recovery rate over 70 percent; it maximized the exploitation and development of mineral resources. In order to make a full use of the abandoned cinder, this town invested 2 million Yuan for the technological transformation and expanding production capacity. The annual production was increased from 44,000 tons to 100,000 tons. And it was able to use 24,000 tons cinder. The production of cement that was mixed with coal cinder not only achieved the aim of recycling resources, but also the quality of products improved by 10 percent and the cost was lessened 15 Yuan per ton. At the same time, the town installed water curtain dust removal equipment in cement plant. In that way, It had solved the environment pollution problems and also recycled part of cement. The town-built cement plant invested 500,000 Yuan on the new production of line of pure lime to achieve the deep processing of lime and the selling incensement. In order to comprehensively utilize coal residue, the town invested 460,000 Yuan on the production line of lime bricks which achieved the annual production of lime and lime bricks respectively 18,000 tons and 18 million blocks. The town found a recycling development way with lime-brick-cement depending on the limestone resource. And the resource recycling rate reached 98 percent. Now the cement and lime and lime-brick of the “Longyin” brand were with high quality. The products had been sold to the neighbor county Chongyang, Xiushui in Jiangxi Province, Pingjiang in Hunan Province.