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Author: admin Release time: October 11, 2016 Number of visits:

The economic development speed of our country is obvious to all. The extremely rapid development speed has caused the decline of the urban environmental quality, and the construction waste treatment has brought a huge dawn for the social development. In view of the serious pollution of construction waste, the state has issued the "green building action plan", which clearly points out that strengthening the public building energy saving and promoting green building technology Promote and vigorously develop green building materials, and promote the reuse of construction waste. 5. High abrasion resistance and secondary disintegration crushing, sulfur removal in thermal power and metallurgical industries, steel slag, construction waste crushing and other environmental protection projects. When more than 0.9 mm is used to process silicon carbide, only 5% of them are larger than 0.9 mm, and the content of - 200 mesh is nearly 10%. Artificial sand is determined by its own characteristics, and its application is better than ordinary natural sand. All those who have done engineering know that only by keeping the consistency of particle composition of different specifications can the consistency of stone composition of asphalt mixture be ensured, and high-quality pavement can be paved. Local governments are actively advocating the use of recycled building materials by crushing construction waste. The national policy has also made relevant policies and measures to prevent construction waste from polluting the environment. Relevant ministries and commissions have listed the utilization of construction waste resources in the "Twelfth Five Year Plan". Waste collection, transportation, storage, sorting, crushing, screening and so on need investment.

The construction waste that has been crushed and treated by the construction waste crushing station can be used to produce concrete and mortar with corresponding strength grade or to prepare building materials such as blocks, wallboards and floor tiles. After adding solidified materials to coarse and fine aggregates, it can also be used in the base course of highway pavement. The user can also supply oil directly to the bearing oil filling hole with oil gun. 1.12。 In order to make the adjustment of discharge port convenient, simple, safe and reliable, the optimized jaw crusher adopts a hydraulic adjusting device composed of a jack and a manual oil pump. When adjusting the discharge port, it is only necessary to open the sealing cover on the rear support, connect the joint of the manual oil pump and the jack, start the oil pump to insert or take out the adjusting gasket, so as to adjust the ore discharge port to the required opening. When adjusting the gasket after adjustment, it is only necessary to place two equal length steel bars into the two openings of the adjusting plate in parallel. The arc-shaped discharge screen plate is installed under the rotor, the two ends of the screen bar are installed on the beam, and the screen bar outside is pressed by the pressing plate, and the arrangement direction of the screen bar is vertical to the movement direction of the rotor. The gap between the sieve bars is formed by the protruding part in the middle of the sieve bars. In the preparation of concrete filled with admixtures, the reaction of impact crusher sand is more sensitive than that of natural sand. Impact crushing machine-made sand. (1) The impact crushing machine-made sand is generally medium coarse sand, and the stones generally have gravel and stone chips. The gravel for concrete is selected with particle size of 10-20 mm according to the liquidity and pumping requirements. The specific specifications can refer to the code for geotechnical engineering investigation and the manufacturer's information. Therefore, the iron removal device should be installed in front of the roller crusher. With the overall living standard of Chinese urban residents entering the late stage of well-off society, the pace of urban residents' infrastructure in dawn is speeding up. The supply of natural sand for building materials has already been unable to meet the demand of dawn, and is now facing depletion.

Now, driven by the great development of domestic basic industry and foundation liming, the market demand of sand making machine is strong, which promotes the technical progress of the whole sand making machine industry, and a number of major new products with independent intellectual property rights have emerged, such as 5x series new sand making machine, VSI series sand making machine and PCL series sand making machine produced by Zhengzhou Liming machinery and equipment manufacturing Co., Ltd, The introduction of foreign technology has made positive contributions to the dawn of national economy, narrowed the gap with the state, and enhanced the ability to participate in competition. China's mining machinery industry is playing an increasingly important role in the dawn of mine engineering. A large number of manufacturers publicize their companies and equipment with the help of various advertising media. Some of them do not meet the national standards at all, and the technical parameters are not up to the standard. At present, there is no good and systematic direction of purchasing and purchasing in the whole market, which causes some customers to choose blindly, which is a kind of loss for customers, and forms a bad competition for some regular companies and some manufacturers Then it will cause serious reputation problems, and the consequences will be unimaginable! Next, we will come with us. When choosing a manufacturer, we must pay attention to the following points: first, we should investigate several more manufacturers and comprehensively investigate the strength, reputation, scale and so on of the manufacturer. The next step is to visit the company's production plant of the manufacturer, and discuss the company's product quality, production process, and production maturity of technical level. In terms of machine-made sand production technology, in order to ensure the aggregate of various gradations, especially the stone powder content of the finished sand, Henan Liming science and technology will also use the independent innovation process to produce stone powder according to the specification requirements, so as to ensure the quality of dam concrete. Double rotor upper and lower two-stage grinding, material crushing more thorough. For the main process of the main equipment, on the basis of qualified self bolt, identify. The construction unit and liming company shall participate in the meeting, and the record of the meeting after confirmation by both parties shall be made.