Tiempo de publicación:17 diciembre, 2019
¿Qué es un horno rotatorio?
Su seguridad y durabilidad horno rotatorio Soluciones, Large horno rotatorio manufacturer in China
Rotary kiln produced by PENGFEI can be divided into cement horno rotatorio, metallurgical horno rotatorio, chemical horno rotatorio or active lime horno rotatorio.
Working principle of horno rotatorios:
The kiln is a cylindrical vessel, inclined slightly from the horizontal, which is rotated slowly about its longitudinal axis. El process feedstock is fed into the upper end of the cylinder. As the kiln rotates, material gradually moves down toward the lower end, and may undergo a certain amount of stirring and mixing. Hot gases pass along the kiln, sometimes in the same direction as the process material (co-current), but usually in the opposite direction (counter-current). El hot gases may be generated in an external furnace, or may be generated by a flame inside the kiln. Such a flame is projected from a burner-pipe (or "firing pipe") which acts like a large Quemador Bunsen. El combustible para ello puede ser gas, petróleo, coque de petróleo pulverizado o carbón pulverizado.Structure of horno rotatorios:
Cement horno rotatorios are mainly composed of:| Carcasa del horno | Dispositivo de rodillo de soporte | Dispositivo de rodillo de empuje | Sellado de la entrada del horno |
| Sellado de la salida del horno | Neumáticos | Campana de horno | Sistema de accionamiento del horno |
Carcasa del horno:
Es un cilindro hecho de chapa de acero al carbono cuyo diámetro puede ser de 6,9 m y longitud puede ser de 230 m.
Dispositivo de rodillo de soporte
Dispositivo de rodillo de soporte is mainly composed of support roller, support roller shaft,bearing, bearing liner, bearing bush, etc. It is used to support the horno rotatorio and the support roller will directly contact the tyres.
Neumáticos:
Neumáticos sometimes is called the riding rings, normally it is a single circular casting ring or forging ring with a smooth surface. Ely are installed to the outer surface of kiln shell via some ingenious design as the tyres shall attach to the kiln shell closely meanwhile it allows the thermal movement. Neumáticos will be supported by a pairs of support rollers which are also machined with smooth surface with the distance in half of the kiln diameter. This structure must allow rotation as nearly sin fricción como sea posible.
Dispositivo de rodillo de empuje:
Dispositivo de rodillo de empuje mainly is divided into hydraulic thrust roller device and mechanical thrust roller device which are used for keeping the safety operation of horno rotatorios.
Sellado de la entrada del horno and kiln outlet sealing:
Rotary kiln sealings are used at kiln inlet and kiln outlet, while kiln outlet is the high temperature side of horno rotatorios with the temperature more than 300°C, sin embargo, la temperatura de entrada del horno es más baja, pero está bajo una alta presión negativa, por lo que las condiciones de sellado deben ser buenas tanto para la entrada como para la salida del horno para que se pueda garantizar el consumo de calor y el consumo de energía.
Campana de horno:
Campana de horno is an important part of horno rotatorio mainly used for collecting clinker to prevent leakage, meanwhile the hot air from cooler via the exhaust fan will be sent into kiln to adequately use the waste heat and reduce the heat consumption.
Sistema de accionamiento del horno:
Sistema de accionamiento del horno is composed of girth gear, pinion, motor, reducer, etc. Girth gear is casting parts with two halves, pinion is forging parts, brand of motor and reducer depends on the customers’ Requisitos.
