Cement rotary kiln system for disposing waste fan blades and working method of cement rotary kiln system
A cement rotary kiln, fan blade technology, applied in cement production, combustion method, treatment of discharged materials, etc., can solve problems such as lack of mature technology, achieve improved performance, good environmental protection and economic benefits, and system adjustment flexibility high effect
Pending Publication Date: 2021-08-24
HUANENG CLEAN ENERGY RES INST
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Problems solved by technology
[0005] Thermally decompose the thermosetting plastics of the blades, and the decomposition products can be used as raw materials after recycling. Compared with incineration and other methods, the attribute of resource recycling is more prominent, but there is no mature technology yet
Method used
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[0040] The present invention will be described in further detail below in conjunction with accompanying drawing and specific embodiment, and its content is explanation of the present invention rather than limitation:
[0041] Such as figure 1 , In the cement rotary kiln system for disposing of waste fan blades of the present invention, raw materials such as clay and limestone are crushed and transported to the homogenizing bin 1 in a certain proportion for homogenization and mixing treatment to form raw meal. There is a discharge port at the bottom of the homogenizing bin 1, which is transported to the bucket elevator 3 through the first auger 2, and is lifted to a certain height of the suspension preheater 5 by the bucket elevator 3. After the bucket elevator 3 is unloaded, it is also used The second auger 4 transports the raw material and sends it into the suspension preheater 5 .
[0042] Such as figure 2 As shown, in one embodiment of the present invention, the suspensi...
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The invention discloses a cement rotary kiln system for disposing waste fan blades and a working method of the cement rotary kiln system, and belongs to the technical field of resource recovery. The cement rotary kiln system comprises a blade breaking and crushing system, a raw material feeding system, a flue gas treatment system, a suspension preheater, a decomposing furnace, a rotary kiln, a clinker cooling device and a blade particle pneumatic conveying system. Crushed fan blade particles are pneumatically conveyed into the decomposing furnace for pyrolysis and combustion, and a cyclone is arranged at the bottom of the decomposing furnace; heat released by combustion of an organic composite material and heat released by combustion of pulverized coal are used for preheating and decomposing raw materials together; and glass fibers in the blade particles also participate in forming the raw materials, and the glass fibers and the raw materials enter the rotary kiln together for firing clinker. The waste fan blades are effectively and comprehensively utilized, and combustion products are normally discharged together with coal-fired flue gas after being disposed by the flue gas treatment device arranged on the cement rotary kiln system. According to the cement rotary kiln system, harmless and resource treatment of the waste fan blades can be smoothly realized, and good environmental protection benefits and economic benefits are generated.
Description
technical field [0001] The invention belongs to the technical field of resource recovery, and in particular relates to a cement rotary kiln system for disposing of waste fan blades and a working method thereof. Background technique [0002] The wind power industry is showing a rapid development trend, and the newly installed capacity is increasing every year. On the other hand, due to the design life and other reasons, a large number of wind turbines are facing elimination every year. The leftover waste and defective products together constitute a large number of discarded / waste blades (collectively referred to as waste blades) that need to be disposed of comprehensively every year. Effective recycling of waste leaves can meet the expectations of building an environment-friendly society, and the harmless resource disposal of waste leaves is worthy of further exploration. [0003] In terms of material composition, fan blades are mainly composed of composite materials (epoxy ...
Claims
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IPC IPC(8): F23G5/00F23G5/027F23G5/033F23G5/16F23G5/20F23G5/44F23G5/46F27B7/00F27D15/02F27D17/00C04B7/28C04B7/38C04B7/43C04B7/44
CPCF23G5/006F23G5/027F23G5/033F23G5/165F23G5/20F23G5/444F23G5/46F27B7/00F27D15/02F27D17/004F27D17/008C04B7/44C04B7/432C04B7/4423C04B7/38C04B7/28Y02P40/10
Inventor 林伟荣蔡安民许扬张林伟李媛金强李力森
Owner HUANENG CLEAN ENERGY RES INST
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