Trough type separator of rice hull chain boiler

Abstract

The invention relates to a trough type separator of a rice hull chain boiler. The trough type separator comprises a separating trough body, a top connecting beam, a reinforced rib plate, a shake-proof connecting device and a guide plate, wherein the separating trough body is internally provided with the guide plate, and upwards penetrates out of a boiler top to be connected with the top connecting beam; the reinforced rib plate is arranged at the joint of the top connecting beam and a top plate; the top connecting beam is connected with the boiler top plate through the reinforced rib plate; and the shake-proof connecting device is arranged at the lower part of a separator, and the separating trough body is vertically arranged. The trough type separator of the invention has the advantages of simple structure, compact and reasonable arrangement, convenient installation and small running resistance, and can prevent a hung connecting beam from being scoured by high-temperature smoke at the hearth outlet of the boiler and further being subjected to oxidation and thermal expansion deformation; an alloy steel full penetration weld double-faced full weld connection mode is adopted, thus the service life of the trough type separator is longer; by designing and selecting the quantity of arranged separators according to the smoke amount and the temperature of the hearth outlet, the separating effect can be improved, thereby reducing the content of carbon discharged by the boiler and realizing the purposes of low carbon and environmental protection.

Description

technical field [0001] The invention relates to a trough-type separator, in particular to a novel trough-type separator used in a biomass rice husk fuel chain boiler. Background technique [0002] At present, the biomass rice husk fuel chain boiler has been widely used due to its advantages of energy saving, environmental protection, good load adaptability, and relatively sensitive adjustment. However, there are also disadvantages such as high blackness level of flue gas, large amount of fly ash, and high carbon content of fly ash. The vast majority of rice husk boilers are not equipped with trough separators. When the boiler is running, the amount of fly ash at the furnace outlet and the carbon content of the fly ash increase greatly, and the temperature of the flue gas in the furnace decreases rapidly, resulting in a high CO content in the exhaust gas, resulting in a large loss of chemical incomplete combustion. At the same time, due to the large amount of fly ash in th...

AI Technical Summary

Problems solved by technology

This type of separator is placed in the furnace outlet flue as a whole, and the connecting beam of the suspension separator has a large amount of thermal expansion under the high-temperature flue gas baking, and is continuously oxidized by high temperature during operation, resulting in thermal stress, which leads to serious thermal deformation, and finally The fragile place, that is, the weld is broken, causing the groove separator to deform and fall off, which cannot meet its design and use requirements

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