Mechanical ash conveying system for thermal power plant
A thermal power plant and mechanical technology, applied in lighting and heating equipment, etc., can solve the problems of high construction cost and maintenance cost of the pneumatic ash conveying system, and the technical scheme has not been made public, etc., and achieve the advantages of small maintenance workload, simplified system and reduced investment Effect
Inactive Publication Date: 2010-06-16
XINJIANG ELECTRIC POWER DESIGN INST
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Problems solved by technology
[0006] The above technical solutions have failed to fundamentally solve the defects of the existing pneumatic ash conveying system, such as high cost and maintenance costs. At present, the relevant technical solutions that can solve related problems have not yet been made public.
Method used
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Embodiment 1
[0011] Example 1: After the ash in the ash hopper of the dust collector is collected by the chain conveyor, it is sent to the ash storage by the hopper elevator.
[0012] The specific system includes: the ash hopper of the dust collector is connected with the chain ash conveyor, the bucket elevator and the ash store in turn. After the gasification fan is connected with the electric heater and the gasification plate in turn, it is connected to the ash storage. The ash stored in the ash storage is transported out by car.
[0013] The composition test of dry ash and cement shows that the difference is mainly in that the particles of ash are larger than cement and have strong water absorption. As the particles of ash are larger than cement, the friction on the equipment will also increase accordingly. The inner surface of the friction equipment designed to be in contact with the ash is lined with 5mm thick wear-resistant ceramics. The equipment has been in operation for nearly 5 ...
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The invention provides a mechanical ash conveying system for a thermal power plant, which is characterized in that ash in an ash bucket of a dust catcher is collected by a chain conveyor, and is sent to an ash warehouse through a hopper elevator. Materials are driven to move through mechanical transmission by pressure-free movement and in a continuous running way, and are conveyed in a mechanical box, so an ash bucket gasification air system, an air compressor system, a bin pump, a pipeline, a valve and the like are eliminated correspondingly. The system has few middle processes, stable operation, few accident spots and low maintenance workload, eliminates an inlet component, greatly simplifies the structure, reduces 60 percent of the gross investment, and is convenient for operators to grasp. The system has very strong adaptability to a coal source, so the conveying speed of a device is increased when the coal type of the thermal power plant changes and the amount of discharged ash is increased. The system does not require secondary reformation on the device.
Description
technical field [0001] The invention belongs to a system for transporting burned coal ash to the outside in a self-provided thermal power plant, in particular to a mechanical ash conveying system for a thermal power plant. Background technique [0002] At present, the ash conveying system of thermal power plants at home and abroad basically adopts the pneumatic conveying method, which is a method of conveying fly ash in the pipeline with the help of some pressure equipment using air as the carrier. Although the system process is complicated, the area is large and the investment High, maintenance and operation costs are high, such a system requires an investment of 9.5 million, while the output of conveying cement is hundreds of tons per day, but the infrastructure investment only needs 6 million, because this system is a relatively mature technology copied from abroad, so it is still widely used However, with the rapid development of the power industry, the requirements for ...
Claims
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Inventor 刘徽
Owner XINJIANG ELECTRIC POWER DESIGN INST