Layer combustion method for coal water slurry and equipment therefor

A technology of coal-water slurry and combustion method, which is applied in the field of fuel combustion, can solve problems such as reducing the initial concentration of smoke and dust, and achieve the effects of low labor intensity of workers, large load adjustment range and safe operation.

Inactive Publication Date: 2006-08-23
王安徽
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Problems solved by technology

[0003] The technical problems to be solved by the present invention are: 1. To reduce the one-time investment cost and operating cost required by coal-water slurry combustion equipment; 2. To ensure safe, stable and durable operation of coal-water slurry combustion equipment; 3. To reduce coal-water slurry combustion equipment 4. Ensure high burnout rate and safe combustion of coal-water slurry; 5. Realize automation of coal-water slurry combustion equipment and reduce labor intensity

Method used

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  • Layer combustion method for coal water slurry and equipment therefor
  • Layer combustion method for coal water slurry and equipment therefor
  • Layer combustion method for coal water slurry and equipment therefor

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Embodiment Construction

[0013] Depend on figure 1 It can be seen that the working process of the coal-water slurry layered combustion method of the present invention is as follows: the coal-water slurry is transported and poured into the slurry storage tank through the fuel delivery device, and is delivered to the slurry feeding system in front of the furnace by the slurry supply pump system, and the coal-water slurry is directly sent to the evaporation The forming device is the drying forming propeller 6, which uses the radiation temperature in the furnace to evaporate 50-60% of the water in the coal-water slurry, so that the coal-water slurry evaporates and dries to form a colloidal state, and then propels it through the drying and forming propeller 6. The screw drive device of the device 18 is layered and put into the moving combustion bed, that is, the chain row 11 in batches to continue to evaporate. During the continuous evaporation of water, part of the remaining water molecules in the coal slu...

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Abstract

The present invention is coal water mixture layer combustion method and apparatus. The coal water mixture layer combustion process includes evaporating partial water in coal water mixture by using the heat of combusting apparatus to form coal in hard colloid state, forming, and layer combustion in movable combustion bed inside combustor. The coal in hard colloid state may have its water further evaporated in the movable combustion bed to form puffed briquette for full combustion. The layer combustion apparatus includes coal water mixture supplying unit connected to the coal water mixture pipe, coal water mixture throwing unit including motor and drying and forming pusher, ignitor, and hearth with chain grating and air distributing below it. The present invention can realize high temperature combustion, and has simple structure, high heat efficiency, convenient output regulation, low cost and other advantages.

Description

technical field [0001] The invention belongs to the technical field of fuel combustion methods, and relates to a coal-water slurry layered combustion method and combustion equipment for the coal-water slurry layered combustion method. Background technique [0002] Coal water slurry is a product of coal deep processing. It is a fuel prepared by mixing coal, water and additives. It is environmentally friendly with low ash and low sulfur. It is an environmentally friendly and clean fuel. my country is rich in coal resources, but the burning of raw coal cannot meet the national environmental protection requirements. After raw coal is processed into coal-water slurry, it can realize environmentally friendly combustion, which is the preferred method of "substituting coal for oil". Therefore, coal water slurry has a very broad market prospect in our country. The combustion technology of coal water slurry mainly has two methods that have been applied at present. The first is the s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F23B30/00
Inventor 王安徽
Owner 王安徽
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