High-quality coal product production equipment and production system

Abstract

The invention discloses a high-quality coal product production plant which comprises a shell and a heat conduction mechanism arranged in the shell, wherein the heat conduction mechanism is provided with a heat conduction medium inlet near the discharge end, and provided with a heat conduction medium outlet near the feed end; the heat conduction mechanism comprises a plurality of sets of heat conduction units which are distributed at intervals; each heat conduction unit comprises a plurality of heat conduction tubes which are communicated with the heat conduction medium inlet and the heat conduction medium outlet; a plurality of fins, which slope downwards, are longitudinally arranged between adjacent heat conduction tubes; and the lower end of each fin arranged between the heat conduction tubes beside the exhaust passage slopes away from the exhaust passage, so as to shield the exhaust port arranged in the wall surface of the exhaust passage. Since the fins, which are arranged in the blanking space between the heat condition tubes, can turn over the material and discharge gas, the gas can be discharged in time, and heat can be transferred quickly, thereby obtaining the high-quality coal product. The invention also discloses a high-quality coal product production system.

Description

technical field [0001] The invention relates to the technical field of coal upgrading treatment, in particular to a high-quality coal product production device and production system. Background technique [0002] At present, coal, as a major resource, has been widely concerned about its development and utilization. In China, coal is divided into the following types according to the degree of coalification from low to high: lignite, low-metamorphic bituminous coal, medium-metamorphic bituminous coal, lean coal, and anthracite. Among them, lignite is the coal with the lowest degree of coalification, accounting for about 40% of the global coal reserves. %, accounting for 13% of China's coal reserves, the reserves are extremely huge. [0003] Nowadays, coal with a higher degree of coalification in coal resources has been exploited in large quantities, while some coal with a lower degree of coalification, such as lignite, has high moisture content (about 20% to 60%), low calorif...

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Problems solved by technology

[0003] Nowadays, coal with a higher degree of coalification in coal resources has been exploited in large quantities, while some coal with a lower degree of coalification, such as lignite, has high moisture content (about 20% to 60%), low calorific value, easy weathering and spontaneous combustion. , the transportation cost per unit of energy is high, which is not conducive to long-distance transportation and storage

At the same time, due to the low thermal efficiency of direct combustion of lignite and the large amount of greenhouse gas emissions, it is difficult to develop and utilize large-scale, so it is largely idled.

[0004] In the prior art, there are two types of upgrading treatment systems for lignite. One is to use hot air to directly contact lignite and dry it. This method uses air and water vapor as carriers, and the drying temperature is low, the thermal efficiency is low, and the degree of drying is low. , It is easy to catch fire and burn, and at the same time it will take away the high calorific value volatiles in the lignite. Since this system uses hot air to directly dry the lignite, the lignite treated at one time cannot be piled up too much, otherwise the lignite inside cannot be heated at a suitable temperature. Therefore, the processing capacity is small, and lignite cannot be upgraded on a large scale; the other is to use coke oven to treat lignite, but coke oven treatment is intermittent operation on the one hand, which causes great environmental pollution. The gas, dust and other substances produced during the treatment process that affect the reforming temperature and thus affect the reforming effect cannot be discharged in time, so that the coal everywhere can not be reformed at an appropriate temperature. In other words, due to the The gas cannot be discharged in time, so these processing mechanisms in the prior art cannot control the temperature in the processing process to obtain the required coal products

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