Automatic quantitative control coal-water oil slurry mixer

Abstract

The invention discloses a preparation mixer for processing powder coal into water-oil coal slurry, which comprises a mixer shell 1 of which the lower part is provided with a slurry outlet 3, and has the key points that: the upper end of the shell 1 is provided with an upper cover 2 capable of accommodating a coal powder chamber 6 accommodated with coal powder and an emulsion chamber 10 accommodated with oil-water emulsion; and a quantitative control device capable of automatically controlling the inlet of the coal powder and the oil-water emulsion is arranged between the upper cover 2 and theshell 1, and is connected with a stirrer in the shell 1. The mixer can automatically adjust the ratio of the coal to the emulsion in proper proportion, accurately control the ratio of the coal powderand the oil-water emulsion in operation, avoid the defects existing in the prior art, use multiple kinds of coal powder, and is suitable for various combustors.

Description

Technical field: [0001] The invention relates to a device for processing coal, in particular to a preparation mixer for processing powdered coal into coal-water-oil slurry. Background technique: [0002] Coal is the main variety of energy consumption in my country, accounting for about 80% of the total energy consumption in my country. During the transportation and combustion of coal, not only will a large amount of energy waste but also cause environmental pollution, so it is very necessary to treat coal . At present, there are mainly coal gasification or liquefaction or coal-water slurry. Coal gasification or liquefaction requires a lot of investment and equipment, and the technology is not yet mature, while coal-water slurry is made by mixing coal, water and additives. A highly dispersed coal-water mixture in which pulverized coal with a certain particle size distribution is uniformly distributed in water can be used as a new type of oil substitute fuel in oil-fired boile...

AI Technical Summary

Problems solved by technology

There are existing coal-water slurry manufacturers in China. The coal-water slurry produced has the advantages of high concentration, fine particle size, high combustion efficiency, environmental protection and energy saving, and safe storage. However, there are still some shortcomings, such as insufficient combustion value, storage or transportation. Inconvenience and delamination are still present, so stabilizing additives or other types (such as hydrophilic) additives need to be used, which will undoubtedly increase costs

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