1. It shows that more than 50000 are not fully connected to the network. Is to display previous data. When more than 80000 is displayed, the network is checked, and the latest data is more than 80000.
2. For the international market, it is still necessary to do network promotion,
it is difficult to grasp the domestic market. On the one hand, it is necessary to pay attention to the network, on the other hand, it is necessary to do publicity in the areas where mines and mineral processing are concentrated. Because the timeliness of domestic information is very strong, it is difficult for the network to develop greatly. After all, it is impossible to find a very professional person to maintain the computer and website
3. Jiangxi Hengchang
mining machinery equipment manufacturing Co., Ltd. is a limited liability company (invested or controlled by natural person) registered in Shicheng County, Ganzhou City, Jiangxi Province on December 9, 2005. Its registered address is located at No. 3 Chuangye Avenue, Guzhang Instrial Park, Shicheng County, Ganzhou City, Jiangxi Province
the unified social credit code / registration number of Jiangxi Hengchang mining machinery and equipment manufacturing Co., Ltd. is 91360735703304y, and the enterprise legal person is Xu Shichun. At present, the enterprise is in business
the business scope of Jiangxi Hengchang mining machinery and equipment manufacturing Co., Ltd. is: mining machinery and equipment, mold, hardware manufacturing, paper procts processing and sales
4. There is no obvious law between the railway fare of EMU and express, which is calculated according to the operating expenses, line investment, service level and many other aspects. At present, there is no EMU from Beijing to Hefei, but there is a high-speed railway under construction. High speed railway is very different from ordinary EMU. EMU is on the existing line, and high-speed railway has a special line, so the cost is higher, so the fare is more expensive, Three hours is the actual situation, not direct. There are stops in the middle. At the current speed of China's high-speed railway, three hours is enough,
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6. &# 8205;< p> The main bearing is a key part of overflow ball mill, and its lubrication must be paid enough attention to. Generally, the concentrated circulation lubrication of thin oil is adopted. The oil flows through the pump and is pressed into the main bearing and drive bearing in four ways, and then is discharged to the oil drainage pipeline at the bottom of the bearing, and then flows back to the oil tank. For medium and small ball mills, oil ring automatic lubrication, oil cup drip lubrication or solid lubricant are used. Some concentrators are equipped with oil cut-off automatic alarm device to ensure the reliability of lubrication. The overflow ball mill is supported on the main bearing by hollow shafts at both ends. One of the two hollow shaft pairs can expand and contract axially on the main bearing, and the other is fixed. Because the gear transmission of ball mill will proce directional force, a hollow journal is designed with two shoulders, and the distance between the shoulders is just equal to the length of the bearing bush, so as to prevent the occurrence of axial movement. The other hollow journal has no shoulder, and its length is 5-25 mm longer than that of the bearing bush. When the cylinder is extended e to heat or flexed e to load, it can expand and contract freely within a certain range
generally, the journal close to the transmission ring gear is the fixed hollow journal. A tapered bushing 9 and a bearing bushing 10 are installed in the hollow journal. The fit between the hollow journal and the inner sleeve is required to be tight, and necessary sealing is required. In order to make the pulp surface in the ball mill have a certain inclination, the inner diameter of the hollow journal at the discharge end is slightly larger than the inner diameter of the hollow journal at the feed end. The inner surface of the hollow journal can be smooth or with spiral blades, and the forward spiral blades in the hollow Journal of the feeding end are used to transport materials; The reverse spiral blade in the hollow Journal of the discharge end can make the coarse material return and prevent the small ball from running out. The driving big gear ring 7 is fixed on the cylinder at the discharge end and meshed with the pinion 6. The motor drives the cylinder through the pinion and the big gear ring
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