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economic new copper mine stone crushing machine sell at a loss

economic new copper mine stone crushing machine sell at a loss

The compound crusher is used to crush a variety of medium hard ores, such as limestone, clinker,coal and other ores, which can be widely used in mining, metallurgy, refractory, cement, coal,glass, ceramics, electric power and other industries, and is one of the commonly used equipment in the crushing production line and the sand making production line. This series of crusher is a new product based on our company's PEL vertical compound crusher and optimized with domestic and foreign fine crushing technology. Its performance has reached the domestic advanced level. It is mainly for all kinds of ore with compressive strength not exceeding 200MPa and water content less than 15%

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Hot Cone Crusher Brief Introduction

We are a professional mining machinery manufacturer, the main equipment including: jaw crusher, cone crusher and other sandstone equipment;Ball mill, flotation machine, concentrator and other beneficiation equipment; Powder Grinding Plant, rotary dryer, briquette machine, mining, metallurgy and other related equipment.If you are interested in our products or want to visit the nearby production site, you can click the button to consult us.

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New dry-process cement plant is composed of raw materials crushing equipment, grinding equipment, cement grinding equipment, cement rotary kiln and other equipment. Cement production line mainly includes process of crushing and pre-blending, raw material preparation, preheating and pre-calcining, cement clinker burning, cement powder packaging. Fote cement equipment is characterized by large capacity, high degree of automation, high quality, low energy consumption, low emissions, etc

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What affects ball mill machine price?1.production cost of ball mill manufacturer.2. sales method of ball mill manufacturers.3. market supply and demand relationship of ball mill.4. industry competition of ball mill

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Powder grinding plant is generally composed of jaw crusher, bucket elevator, electro-vibrating feeder, mainframe and auxiliary engine of grinding mill, draught fan, dust-removing equipment, centralized electronic control and other equipment. According to

Problems and Solutions in Sand Production Line:1.Problem: The production process of sand production line is not smooth.2.Problem: The vulnerable parts of sand processing equipment are frequently worn.3.Problem: Serious dust pollution in sand production line

chapter - 1 the ashio copper mine pollution case: the

I. Technological modernization and the Ashio Copper Mine II. Protests against mining poisons and governmental measures III. Mine operations in the Post Sino-Japanese War era and the stance of the government IV. Tanaka's attempt to appeal directly to the emperor and the poisoned water-collection pond plan V. Shozo Tanaka takes up residence in Yanaka village VI. The historical implications of the Ashio Copper-mine poisoning incidents VII. Copper-poisoning issues and their aftermath VIII. Conclusions: Lessons for today from the Ashio Copper-mine poisonings

In 1868, the newly established Meiji government of Japan made the modernization of the country by increasing military strength and expanding industrial production its first national priority. The government established a Department of Industry in 1870 and came to control all industries other than the military. On the basis of land taxes, this new department took the initiative in starting new industries, and looking after private enterprise until the department was disbanded in 1885. The work that the department had done was to introduce new technologies and machines from the advanced capitalist countries and also to invite technicians to Japan to provide new industrial production models and technologies

Related industrial laws were established and, by 1877, mining, financed by private capital, had grown rapidly. Copper was especially important for the new government, because its exports brought in much-needed foreign money. The demand for copper overseas supported the copper industry in Japan. As table 1.1 indicates, most of the copper produced in Japan was exported. Copper earned 9.5 per cent of Japan's export earnings in 1890 and through this Japan became established as a world-level copper producer. The earnings were used to purchase mining equipment, military weapons, and other industrial machinery. Copper played an important role in the development of Japan's capitalism, and the main domestic copper producer was the Ashio copper mine

The Ashio copper mine had been the property of the Tokugawa shogunate, and as such had produced 1,500 tons annually, which was the maximum possible output in the 1600s. However, this high output level had been dropping gradually. The mine was temporarily closed in 1800, but in 1871 it became a private operation, and finally in 1877 it came to be owned by Ichibei Furukawa. In 1881 a new but small lode of ore was discovered, followed by a much larger one in 1884, and, as indicated in table 1.2, copper production rose very rapidly as a result of these discoveries. In 1884, the production stood at 2,286 tons per year. Thus Ashio became the mine with the highest output in Japan, producing 68 per cent of the total output of Furukawa mines and 26 per cent of Japan's production

chapter - 1 the ashio copper mine pollution case: the

From 1876 to 1885, the demand for copper was rather low, because mining technology in Western countries was on the upswing and because the world's copper market had fallen into a depression. This also had an effect on Japan's copper production which, in like manner, faced marketing difficulties during that period. In spite of its primitive methods and the depression in the world's copper markets, the Ashio mine was prosperous because of the excellent quality of the ore discovered in the larger lode

In 1885, Furukawa bought the Ani mine from the government, not only to add another productive mine to the company's holdings, but also to provide an opportunity to make use of the latest modern equipment that had been installed there, as well as its highly skilled technicians. This equipment from the Ani mine enabled the Ashio mine to modernize the system for pumping the water and ore slurry, which up until then had been done manually, because the newer ore-digging and crushing equipment incorporated a steam-operated pumping method. With the help of foreign technicians the mine was reorganized for more efficient output on the basis of new techniques and equipment, and the horizontal mining method was introduced. However, the mine's capital accumulation was as yet insufficient for the further introduction of advanced production technologies

In September 1885 when the Ashio mine was flooded, the technical limitations were revealed. Although production had reached a record 4,090 tons that year, it took another two years before the former production levels were regained. The years 1886-1887 saw a depression in world copper markets. The Jardine Matheson Company, the largest of all British companies in South-East Asia at that time, requested exclusive purchasing rights for all Furukawa's copper output. with the aim of creating a monopoly in world markets and forcing an increase in the price of French-produced copper

chapter - 1 the ashio copper mine pollution case: the

At first Furukawa was unwilling to conclude this contract because of the large amount of copper to be sold and the terms of the payment. But in 1888 a contract was signed: Furukawa was to sell 19,000 tons of copper at the Yokohama rate of 20.75 yen per 100 kin (I kin = 0.6 kg) for 29 months. With this contract in hand, Furukawa could make capital borrowings, but in order to realize these the output of the Ashio mine had to be greatly increased

Under these conditions it was not only essential but inevitable that the technology used in the Ashio copper mine be updated and modernized. The problem of flooding, which had plagued the mine for three years, was solved within the year. Furukawa was the first to install a telephone system in the mine. Various kinds of mining equipment were imported for drainage and the transportation of ores' and the production was generally improved. Further, the company initiated innovations that were to increase production capacity, reduce the need for labour, and cut the cost of production

However, no matter how much effort was given to increasing copper production, the refining method was still rather primitive. In 1887, of the 48 refining sites, eight were abolished and replaced by one modern hydrometallurgical separator and three pyrometallurgical smelters. In 1890, in order to meet the contract demands of the Jardine Matheson Company, another 12 hydrometallurgical separators were installed to replace the old smelters

chapter - 1 the ashio copper mine pollution case: the

There were many problems like excessive energy consumption and product and ore transportation. In 1890, Furukawa requested the Siemens Company of Germany to install a 400-horsepower hydro-electric turbine that was to run an electric generator to power an 80-horsepower pump, a 25-horsepower ore lift, and a 6-horsepower electric-light system. The electric pump was of the plunger type which provided greater efficiency and energy conservation in water drainage and ore transportation. In 1891 an electric railway was built between the mine and the refining area

Because the transportation of the finished products was dependent on the use of horses and cows, weather and temperature caused problems. In order to solve them, the company installed a 30-horsepower steam-engine-powered cable across the Hosoo Pass in 1890. Then, when the Japan National Railway opened the Nikko rail line, the company began to operate a horse-drawn train between the Hosoo Pass and Nikko, thereby greatly improving the product transportation system

In 1893 Furukawa built a Bessemer smelter. With the help of this, the time needed for the refining of the ore was reduced from 32 to 2 days. The Ashio copper mine now became the leading copper producer as a result of its greatly increased productivity

chapter - 1 the ashio copper mine pollution case: the

The predominantly capitalistic production system of the Ashio copper mine brought about serious mining-induced environmental destruction. As indicated in figure 1.1, the discovery of the large copper ore lode caused all the trees surrounding it to die by the end of 1884. In August 1885. the use of a rock-crushing machine and a steam-operated pump in the Ani mine greatly increased production but led to massive fish kills in the Watarase River. In

August 1890, when all modern technology systems had been installed, �1 flood occurred in the Watarase river basin, and 1,600 hectares of farmland and 28 towns and villages in Tochigi and Gunma prefectures were heavily damaged by the floodwater, which contained poisons from the Ashio mine

In October 1890, Chugo Hayakawa led a movement against the mine and asked the prefectural hospital to do some tests for water-borne poisons. In December, the residents of Azuma Village, Tochigi Prefecture, appealed to the governor of the prefecture to call a halt to the mining operations at Ashio. This was the first of such appeals and of the movements against Ashio

chapter - 1 the ashio copper mine pollution case: the

In December 1890, the Tochigi Prefectural Council resolved that the poison problems should be investigated. Gunma Prefecture followed their lead in March 1891. In April 1891, the governor of Tochigi made a request to the Agricultural University to investigate the causes of the damage to agricultural systems, and asked for countermeasures. He was followed by the governor of Gunma, who did the same in June and July. During these periods the farmers began to organize their efforts to counteract the mining poisons. Sukeyuki Cho, Chugo Hayakawa, and Sahei Kameda from the Ashikaga and Yamada areas of Tochigi formed volunteer groups, and started to organize the provinces of Yamada, Nitta, and Oura in Gunma Prefecture in order to stop the mining. At the same time they published the results of soil analysis and other surveys related to the Ashio mine poisons. carried out by Professor Yoshinao Kozai of the Agricultural University, but the book was immediately confiscated by the authorities

The destruction of agricultural ecosystems by the Ashio water-borne poisons provoked a response from the farmers, which at first was oriented towards stopping the operation of the mine altogether, but which was also concerned with gaining monetary compensation from the mine-owners for the extensive damage that had been done. In September 1891, the governor of Tochigi Prefecture proposed to lay the groundwork for negotiations between the farmers and the Furukawa management concerning possible compensation for damages on condition that the former agreed to mediation through the governor. The representatives of six villages in the Ashikaga area and three in the Yamada area, including Sahei Kameda of Azuma Village, agreed to accept the proposal. In this way the farmers' movement against the operations of the copper mines slowly changed into a movement to demand compensation for damage. Japanese governmental attitudes toward the Ashio copper mine problems and measures to resolve them were reflected in the Imperial Constitution of Japan, which was promulgated in February 1889

Prima facie the Imperial Constitution was egalitarian, but in reality the rights of the people and the Imperial Diet were tightly circumscribed in deference to the authority of the Emperor, who, as the sovereign head of state and commander-in-chief of the armed forces, retained the power to declare war and negotiate peace. The National Diet was not able to interfere in military affairs, and its deliberation of budget bills was also limited. The power to form or disband governmental organizations belonged exclusively to the Emperor

chapter - 1 the ashio copper mine pollution case: the

The concentration of power in the hands of the Emperor inevitably created advisory organs like Genro, which were exclusively manned by members of the Satsuma and Choshu clans, who had been instrumental in bringing about the Meiji Restoration and in establishing the bureaucratic system of Japan

Elections were held only for members of the Lower House of the Imperial Diet, which was established in November 1890, while the Upper House was constituted through Imperial Orders and consisted of noblemen, bureaucrats, large landowners, and industrial capitalists. This system of government was established under the Emperor in collusion with large landowners and industrial capitalists who had accumulated their wealth by taking advantage of the Matsukata Monetary Retrenchment Measures instituted in 1881. It was this same group that had established the Department of Industry within the government

With this amount of power concentrated through governmental structures in the hands of a few individuals, policies were oriented toward strengthening military power and the creation of a technologically sophisticated industrial state. In this context and under the Imperial Constitution, the political and economic roles of the Ashio copper mine were strengthened, because copper was an important foreign money-earner, and foreign money was needed for the purchase and importation of weapons and industrial machinery. Against this background, Ichibei Furukawa succeeded in establishing solid relationships with those in governmental circles

chapter - 1 the ashio copper mine pollution case: the

Furukawa continued his relationship with Eiichi Shibusawa, the leading capitalist of the times, and he was greatly supported by Kaoru Inoue, a political magnate who had served the Foreign Ministry and the Department of Industry. Junkichi, the second son of the future Foreign Minister Munemitsu Mutsu, was adopted as a son-in-law by Ichibei Furukawa and through this the ties between the two families were cemented, which did much to strengthen their economic and political power. In 1890, Mutsu was appointed to the Ministry of Agriculture and Business, and Mutsu's secretary, Takashi Hara, became vice-president of Furukawa Mining in 1905. In 1907, Hara became the Minister of Home Affairs, and ordered the destruction of Yanaka Village. Hara's talent had first been recognized by Kaoru Inoue, the then Minister of Foreign Affairs, and this led to his becoming a foreign affairs appointee to France. While Hara was in France. he had become acquainted with Tsugumitsu Saigo of the Japanese Navy, and Aritomo Yamagata of the Japanese Army - relationships that made it possible for him to move later on into the prime ministership. Taking advantage of these connections, Hara was able to strengthen the relationship between the political tycoons and Furukawa

In December 1891, in the second Diet session. Shozo Tanaka, a member of the Lower House from Tochigi Prefecture, demanded that mining at Ashio be stopped, drawing on Article 27 of the Imperial Constitution which guaranteed the inalienable right of petition and pointing out the fact that Japan's Mining Laws stipulated a withdrawal of the right to mine if mining operations damaged public welfare. Along with this action Tanaka requested that Mutsu, who was then Minister of Agriculture and Business, take complete responsibility for the damage done to the agricultural sector by the mine-related poisoning. However, before any action could be taken in this regard, the second Diet session was dissolved over budgetary issue confrontations between the government and opposition parties. The government's answers to Tanaka's questions and demands appeared in Kanpo, the government newsletter. which said that the causes of the damage to the agricultural systems in the areas around the Ashio mine were unknown and were under investigation; the company would be reprimanded for the discharge of poisons from the mine and ordered to install pulverized ore-dust collection equipment so as to prevent the outflow of poisons

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