Petroleum coking-slurry burner

Abstract

This invention shows a fossil oil serum coke burning device including the shell that consists of fuel pouring wall, flame outpouring wall and the side wall. There is a burning space inside the shell of which the side wall sets interval two or more tangential intakes. The fuel pouring wall sets at least three atomization burners of fossil oil serum coke and at least one oil burner together with at least a gas burner. The inside diameter of the burning space inside the shell is 1/4 to one time of the vertical distance between the inside wall of the flame outpouring wall and the inside wall of the fuel pouring wall.

Description

technical field [0001] The invention relates to boiler equipment, in particular to a combustion device which uses petroleum coke slurry as fuel. Background technique [0002] On the one hand, with the increasing environmental pollution, boiler equipment has basically switched to clean energy, such as oil, natural gas or coal gas, but this has greatly increased the fuel cost of boiler equipment. [0003] On the other hand, the energy crisis has become a worldwide concern. The natural energy that can be used by human beings is getting less and less, but the human demand for natural energy is increasing. Therefore, all countries in the world are adjusting their energy structure to save the existing energy to the greatest extent. [0004] Therefore, people are constantly seeking new clean energy. The use of low-cost, high-efficiency and clean petroleum coke slurry fuel can not only make reasonable use of natural resources, but also reduce the fuel cost of boiler equipment. H...

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Problems solved by technology

[0007] However, there are defects in the water coke slurry combustion device and method disclosed in the above two patents. First, only one water coke slurry spray gun is used. To achieve sufficient combustion intensity, the supply of water coke slurry must be increased, that is, the water coke slurry The slurry particles will be sprayed far away, and the combustion dynamic field formed in this way is slender, uneven, and not full, so that the water char slurry particles cannot be effectively and fully burned. Once the water char slurry particles are not fully burned, they will leave After the combustion chamber, as the temperature drops, it will coke on the furnace wall or pipeline wall. After the coking reaches a certain level, the heat transfer efficiency of the equipment will be reduced, and serious accidents will be caused; secondly, only one water coke is used. Once the spray gun is turned off, the ignition must be restarted, which will affect the normal production; in addition, it is difficult to fully atomize the water coke slurry effectively by using only one water coke slurry spray gun. The coke slurry particles are fully in contact with the air and burned, and the combustion efficiency is not high; moreover, if only one water coke slurry spray gun is used without other ignition devices, there is no way to directly ignite the coke slurry in principle, even if the first The method of changing the fuel oil to the water coke slurry spray gun can not actually ignite the water coke slurry; finally, the air used in the primary wind and the tangential wind in the above two patents is not distinguished. If the air in the primary wind is not heated, it will As a result, the combustion is not violent. If the tangential wind does not use cold air, the effect of effectively reducing the temperature of the inner wall of the combustion chamber and avoiding coking cannot be achieved.

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