Shandong mining machinery merger
Interstellar file system
IPFs is a content addressable peer-to-peer hypermedia distribution protocol. IPFs combines the existing successful systems, such as distributed hash table, BitTorrent, version control system git, self certified file system and blockchain, to form a file storage and content distribution network protocol. IPFs is also an open source project
IPFs attributes:
1, permanent, decentralized save and share files
Peer to peer hypermedia: P2P stores all kinds of data3. Versioning: it can trace the modification history of documents
extended data
advantages of IPFs:
1. Content addressing: all content (including links) is uniquely identified by its multi hash check sum
2. Tamper proof: all contents are verified by their checksums. If the data is tampered with or damaged, IPFs will detect the data
3. De rendancy: all objects with identical contents are stored only once
PFS does not require every node to store all the content. The owner of the node can choose the data he wants to maintain freely. Besides backing up his own data, he voluntarily provides services for other concerned content source: network interstellar file system
has news that many blocks are sealed by WeChat official account. Some media found that blockchain we media, including "coin world express" and "deep chain finance" were stopped using on the evening of the 21st
previously, bitcoin trading volume once ushered in explosive growth. With the popularity of ICO financing, which is known as "currency circle IPO", the risks of bitcoin money laundering and ICO illegal fund-raising are also concerned by all parties
on September 4 last year, many departments, including the central bank, issued the announcement on preventing the financing risk of token issuance (hereinafter referred to as the announcement), which stopped the financing of ICO, and the virtual currency exchange also announced the withdrawal one after another
source: Beijing News
font: [large, medium and small] time: September 1, 2014 source: National Coal Instry Network
China Coal Association comprehensive [2014] No. 98
member units, relevant coal enterprises and institutions:
in order to comprehensively reflect the development achievements of large coal enterprises in 2013, To further promote the construction, transformation and upgrading of large coal enterprises (groups) and promote the stable operation and sustained and healthy development of the coal instry, on the basis of the successful release of China's top 100 coal enterprises for 11 consecutive years, with reference to the internationally accepted standards, through independent declaration by enterprises, and after careful examination and approval, according to the 2013 annual business income of enterprises as the shortlisted standard, The top 100 coal enterprises in China in 2014 were listed. Compared with last year, the shortlisted enterprises present six characteristics:
first, the business scale expansion slows down, and the non coal instry continues to expand. The total operating revenue of 100 enterprises reached 4.16 trillion yuan, an increase of 10.03% over the previous year, and the growth rate dropped by 8.12 percentage points, reaching the lowest level in ten years. There were 16 enterprises with operating revenue of more than 100 billion yuan, which was the same as last year. Some enterprises maintained a steady growth momentum, and the income of 54 enterprises maintained a year-on-year growth. The total non coal income of 100 enterprises reached 2.46 trillion yuan, an increase of 19.38% over the previous year, and the proportion of non coal reached 60%
the second is the increase of coal proction and the decrease of coal instry income and profit. The coal output of 100 enterprises reached 3.005 billion tons, an increase of 156 million tons over the previous year. The annual growth rate dropped from 13.72% to 5.47% since the 11th five year plan, the lowest level since the 11th five year plan. For the first time, it accounted for more than 80% of China's coal proction, accounting for 81.66%. Among the 90 coal proction enterprises, the output of 55 enterprises increased year on year, with a cumulative increase of 228.92 million tons, an increase of 10.43%; The output of 34 enterprises decreased year on year, with a cumulative rection of 51.39 million tons, down 8.16%; The output of one enterprise was flat on a year-on-year basis. The coal instry income of 100 enterprises reached 1694.8 billion yuan, with the output increasing by 5.47% over the previous year, the income decreased by 1.21% over the previous year
thirdly, the profitability declined significantly, and the efficiency of capital operation continued to decline. The total net profit of 100 enterprises was 84.157 billion yuan, a sharp decrease of 44.18% over the previous year. Among them, 21 enterprises suffered losses and 77 enterprises' net profit decreased year on year; The average net profit rate of sales was 2%, which was 2% lower than that of the previous year. Among them, the net profit rate of sales of 85 enterprises decreased year on year; Total assets, net assets and liabilities reached 5.7 trillion yuan, 1.85 trillion yuan and 3.85 trillion yuan respectively, up 12.74%, 6.26% and 16.13% respectively over the previous year. Driven by the rapid growth of liabilities, the growth rate of total assets has been higher than that of net assets for five consecutive years, and the quality of asset growth has continued to decline; The asset liability ratio continued to rise, reaching 67.59%, 1.97 percentage points higher than that of the previous year, 4.99 percentage points higher than that of Coal Enterprises above the national scale, and the financial risk of enterprises continued to increase
fourthly, the total amount of tax payment decreased for the first time, and the contribution of profits and taxes "dived" greatly. The total amount of tax paid by 100 enterprises was 294.483 billion yuan, a decrease of 38.259 billion yuan or 11.47% over the previous year, the first decrease in 10 years; The total profits and taxes reached 378.641 billion yuan, down 104.763 billion yuan or 21.67% from the previous year; For the first time, the profit and tax rate of business income fell to single digits, 9.11%, 3.69 percentage points lower than that of the previous year. Shenhua Group is the only enterprise with profits and taxes of more than 100 billion yuan, with profits and taxes of 129.367 billion yuan, accounting for more than one third of the total profits and taxes of 100 enterprises
fifthly, the main role of the top 10 enterprises was further strengthened, and 11 enterprises appeared in the world top 500. The top 10 enterprises remained relatively stable. Shenhua Group continued to lead the list with an income of 367.8 billion yuan, Shanxi Coking Coal Group ranked second with an income of 236.1 billion yuan, and Jizhong energy group ranked third with an income of 229.9 billion yuan. The income, assets, output and profit of the top 10 enterprises were 2.29 trillion yuan, 2.67 trillion yuan, 1.384 billion tons and 92.6 billion yuan respectively, accounting for 55.18%, 46.83%, 46.06% and 69.05% of the 100 enterprises respectively, up by 2.13%, 3.29%, 0.74% and 18.88% respectively over the previous year, and their main role was further enhanced. The top 10 enterprises, together with Kailuan Group, which ranks No. 11, were shortlisted in the Fortune Global 500 in 2014, ranking within 400. Among them, Shenhua Group ranked 165, up 13 places over the previous year. Shanxi Coking Coal Group rose from 403th last year to 290th. Compared with the previous year, the income and ranking of 11 enterprises increased, but the overall profit level showed a downward trend. 11 enterprises made a total net profit of 61.027 billion yuan, a year-on-year decrease of 21.38%. Four enterprises lost money, and 10 enterprises' profits dropped to varying degrees< Sixth, merger and reorganization continue to advance, and the effect of integrated growth is remarkable. More than 100 enterprises have actively carried out joint-stock reform by means of merger and reorganization, listing and financing, and issuing bonds. With the development of diversified equity and investors, the reform of property rights system has been graally deepened, the corporate governance structure has been graally improved, and the degree of marketization of enterprises has been steadily improved. A total of 25 enterprises implemented M & A activities in 2013, which was lower than that of the previous year. There are 52 listed companies in 39 enterprises and 27 coal listed companies. There are many hot spots of merger and reorganization, such as Henan coal chemical group and Yima Coal Group strategic reorganization to establish Henan energy group, Shanxi Coking Coal Group reorganization to Shanxi coke group, Shanxi coal transportation and marketing group and Shanxi International Power Group merger and reorganization to establish Jinneng Co., Ltd., Shandong energy group in Australia, Cambodia and other countries to acquire coal mines, oil shale mines and rubber parks, Jingyuan Coal Group listed successfully and successfully reorganized Liuhua group, the largest fertilizer proction enterprise in Gansu Province
in 2013, facing the severe situation of coal economic operation, coal enterprises insisted on making progress while maintaining stability, actively promoted the coal market-oriented reform, accelerated the pace of structural adjustment, transformation and upgrading, and made remarkable achievements. At the same time, there are still many difficulties and contradictions in the development of coal enterprises, such as slow progress in transforming the mode of economic development and low efficiency of capital operation; The profitability declined sharply and the loss continued to increase; The structural surplus situation of coal is aggravating, and the task of de capacity is arous; Lack of innovation driven power, lack of long-term mechanism for stable growth of R & D investment; Lack of core competitiveness and weak brand awareness. These seriously restrict the development of enterprises
the CPC Central Committee and the State Council attach great importance to the healthy development of the coal instry. Recently, the relevant departments of the state are strengthening the work of extricating the coal instry from difficulties, and promoting the work of extricating the coal instry from difficulties in an all-round way. It is hoped that the majority of coal enterprises will thoroughly implement the spirit of a series of documents, such as the opinions of the general office of the State Council on promoting the smooth operation of the coal instry (GBF [2013] No. 104), implement the work arrangements put forward by the national development and Reform Commission, further deepen reform, strengthen self-discipline, promote transformation and upgrading, and effectively improve the quality and efficiency of development, To promote the smooth operation and healthy and stable development of the national coal instry to make positive contributions<
Annex: list of top 100 Chinese coal enterprises in terms of business income in 2014
China Coal Instry Association
August 22, 2014
list of top 100 Chinese coal enterprises in terms of business income in 2014
business income of main procts or services in enterprise name area
/ 10000 yuan
1 Shenhua Group Co., Ltd Shipping, railway, coal chemical instry 36781691
2 Shanxi Coking Coal Group Co., Ltd. Shanxi coal, coking, trade, building materials, electric power 23608769
3 Jizhong Energy Group Co., Ltd. Hebei coal, pharmaceutical, aviation, machinery manufacturing, logistics 22990319
4 Shandong energy group Co., Ltd. Shandong coal, logistics, chemical, machinery manufacturing Medical devices 22972301
5 Shanxi coal, logistics 22801762
6 Henan energy and Chemical Instry Group Co., Ltd. Henan coal, chemical, metallurgy, machinery manufacturing, logistics 21987835
7 Datong Coal Mine Group Co., Ltd. Shanxi coal, electric power, coal chemical, metallurgy, machinery manufacturing 19928, 050
8 Shanxi Lu'an mining (Group) Co., Ltd. Shanxi coal, chemical instry, electric power 19879287
9 Shanxi Jincheng Anthracite Mining Group Co., Ltd. Shanxi coal, chemical instry, CBM, machinery manufacturing, electric power 19259494
10 Yangquan Coal (Group) Co., Ltd. Shanxi coal, coal chemical instry, aluminum instry, electric power, construction real estate Machinery manufacturing 19179052
11 Kailuan (Group) Co., Ltd. Hebei logistics, coal, coking, building materials, construction 19098788
12 Shaanxi coal chemical instry group Co., Ltd. Shaanxi coal, coal chemical instry, steel, electric power, railway investment 15077824
13 zhongguoping Shenma energy chemical Instry Group Co., Ltd. Henan coal, coke Nylon 66 salt, nylon 67 chip, resin 14008232
14 Shanxi coal import and Export Group Co., Ltd. Shanxi coal, high speed Railway Wheelset manufacturing, real estate, chemical 12726860
15 China Coal Energy Group Co., Ltd. Beijing coal, logistics, coal machinery manufacturing, coal chemical, power 10747952
16 Yankuang Group Co., Ltd. Shandong coal, coal chemical, aluminum ingot Machinery manufacturing, electric power 10133163
17 Huainan Mining (Group) Co., Ltd. Anhui coal, electric power, real estate, finance, logistics 7125232
18 Huaibei Mining (Group) Co., Ltd. Anhui coal, coal chemical, construction and installation, electric power, logistics 6009133
19 Heilongjiang Longmei mining Holding Group Co., Ltd. Heilongjiang coal Coke, medical treatment, engineering labor, electric power 3868351
20 Anhui Wanbei Coal Power Group Co., Ltd. Anhui coal, chemical, logistics, building materials 3816730
21 Inner Mongolia Yitai Group Co., Ltd. Inner Mongolia coal, railway, real estate, medicine, coal chemical 3646355
22 China Coal Science and Instry Group Co., Ltd. Beijing Coal Machinery Equipment Manufacturing Co., Ltd Scientific research and design, engineering contracting, energy conservation and environmental protection and new energy 3605496
23 Chongqing Energy Investment Group Co., Ltd. Chongqing coal, gas, electricity, construction, material trade 3449034
24 Shanxi gas pipeline network construction, coal transportation and marketing, comprehensive development and utilization of resources, trade 3155, 430
25 Zhejiang zheneng Fuxing Fuel Co., Ltd. Zhejiang coal transportation, coal sales, coal monitoring, coal storage 3054263
26 Zhengzhou coal instry (Group) Co., Ltd. Henan coal, logistics, railway freight, power generation and transmission and transformation 2951517
27 Xuzhou Mining Group Co., Ltd. Jiangsu coal, electric power, coal chemical, mining engineering Equipment manufacturing 2765206
28 Henan Shenhuo Group Co., Ltd, 384
31 Yunnan coal, coking, chemical raw materials, aluminum ingot, chemical fertilizer 2532935
32 Beijing Jingmei Group Co., Ltd. Beijing coal, urban services, real estate, coal power
Sprocket assembly is composed of sprocket and connecting roller. It is an important part of scraper conveyor, and it is also the most torque part of conveyor. Therefore, in the process of purchasing sprocket shaft group, many problems should be considered, and we must be very careful. Only in this way can we choose high-quality sprocket shaft group, prolong the service life of sprocket shaft group, and improve work efficiency, otherwise, In the use of the process is prone to accidents, resulting in labor and money, so what should be paid attention to in the process of purchasing sprocket shaft group? What is the price of sprocket shaft group
what problems should be paid attention to in the process of purchasing sprocket shaft group:
with the development of coal machinery and the national rectification and merger of small and medium-sized coal mines, large-scale fully mechanized mining equipment is more and more widely used in coal mines With the development of heavy-ty scraper conveyor, there are more and more types of scraper conveyor, and the models proced by major coal machine manufacturers are also different. As the main vulnerable parts of scraper conveyor, sprocket shaft group is not universal, which makes it difficult to determine when purchasing. So what problems should be paid attention to when purchasing sprocket shaft group? We summarize the following aspects
First, the main engine manufacturer of sprocket shaft group. As there are many manufacturers of scraper conveyor, the sprocket shaft group of each manufacturer can not be used in general, so when purchasing, we must first determine which manufacturer of scraper conveyor is suitable for sprocket shaft group. At present, the most important domestic scraper conveyor manufacturers are China Coal Zhangjiakou coal machinery plant, Ningxia Tiandi Benniu, Shandong mining machinery, Shanxi coal machinery plant and Zheng coal machinery Second, the determination of drawing number of sprocket shaft group. Even for the same scraper conveyor manufacturer, the sprocket shaft group applicable to the same scraper conveyor model may not be the same. Therefore, it is necessary to determine the drawing number of the sprocket shaft group. Each sprocket shaft group has only one set of drawings. As long as you find the drawing number of the sprocket shaft group and have the corresponding drawings, you can ensure that the sprocket shaft group proced will not make mistakes Third, the material selection of sprocket shaft group. Due to the increasing power and transportation volume of scraper conveyor, there are great requirements for the toughness and strength of sprocket shaft group. If the material selection is not appropriate, the sprocket shaft group will be prone to accidents in the use process, affecting the proction progress, and even safety accidents. At present, the commonly used materials are 42CrMo and 45crnimnmu. When selecting, the appropriate materials should be selected according to the transportation volume Fourthly, the manufacturing process of sprocket shaft group. Due to the high requirements for the toughness and strength of the sprocket shaft group, the manufacturing process can not be careless. At present, the manufacturing process of the sprocket shaft group mainly includes forging, casting and welding. Small ordinary mining scraper conveyor can choose casting and welding sprocket shaft group. For large fully mechanized sprocket shaft group, in order to ensure its performance requirements, only forging sprocket shaft group can be selected, and heat treatment, quenching and tempering and other processes can be carried out
when purchasing the sprocket shaft group, we should pay attention to the above aspects. Basically, the sprocket shaft group can basically meet the performance required by the current scraper conveyor, but there is another point to pay attention to, that is, when the scraper conveyor is running, we must pay attention to the wear of the sprocket shaft group at any time to avoid accidents
Jinan Xinqiao Mining machinery plant supply chain wheel shaft group
starting batch: 1 piece
price: ￥ 26000
Henan Guanglian Electromechanical Technology Co., Ltd. supply chain wheel 40t630 / 320 forging parts of scraper for mining
starting batch: 1 piece
price: ￥ 10000
Luoyang Yuanjian mining equipment Co., Ltd 0 / 06ll sprocket shaft group Zhangjiakou coal machinery scraper series sprocket shaft group sprocket assembly manufacturer
starting batch: 1 piece
price: ￥ 88000
the above is about the problems that should be paid attention to in the process of purchasing sprocket shaft group and the price introction of sprocket shaft group manufacturer, In the purchase of sprocket shaft group must be very careful, understand all the situation before making a decision, and in the purchase can not be greedy for small cheap Oh, to buy high-quality procts is the king. At the same time, when using the sprocket shaft group, you should often check the wear of the sprocket shaft group and take preventive measures to avoid accidents. I hope the above contents can help you