Full-closed metallurgy rotary kiln

Abstract

The invention discloses a full-closed metallurgy rotary kiln and belongs to metallurgy ichor. The full-closed metallurgy rotary kiln comprises a kiln head, a kiln cylinder and a kiln tail of the rotary kiln and further comprises a kiln head box, wherein the sides, opposite to the kiln head and the kiln tail, of the kiln head box are connected with the ends of the kiln cylinder. The kiln head box and the kiln cylinder are rotataby connected, and a cleaning sealing bin is arranged at the kiln head and the kiln tail; a material outlet and inlet are formed in the cleaning sealing bin, and the outlet and the inlet are each provided with a plug board sealing valve; the cleaning sealing bin is further provided with an air inlet and an air outlet, and during feeding and discharging, the first plugboard sealing valve and the second plug board sealing valve which are arranged at the outlet and the inlet of the cleaning sealing bin are opened and closed alternately, so that the interior of the kiln cylinder is isolated from the outside; full sealing of the metallurgy rotary kiln can be achieved from the links such as material in and out, circumferential sealing and end face dynamic sealing,strict isolation is achieved between the kiln interior atmosphere and the atmosphere, and the purpose that metallurgy materials are protected through the production atmosphere is achieved.

Description

technical field [0001] The invention relates to a rotary kiln for metallurgy, in particular to a fully enclosed metallurgical rotary kiln, which belongs to the technical field of metallurgy. Background technique [0002] Rotary kiln refers to rotary calcining kiln (commonly known as rotary kiln), which belongs to the manufacturing equipment of metallurgy, chemical industry and building materials. Rotary kiln can be divided into cement kiln, metallurgical chemical kiln and lime kiln according to different materials. Cement kilns are mainly used for calcining cement clinker, which can be divided into two categories: dry production cement kiln and wet production cement kiln. Metallurgical and chemical kilns are mainly used for magnetization roasting of lean iron ore in iron and steel plants in the metallurgical industry; oxidative roasting of chromium and nickel-iron ore; roasting of high-alumina bauxite in refractory plants and clinker and aluminum hydroxide in aluminum plant...

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Problems solved by technology

[0006] Aiming at the problem that the kiln head kiln tail box is not tightly sealed, the effect of isolating the air is poor, and it will bring pollution to the workshop and the surrounding environment, the invention provides a fully enclosed metallurgical rotary kiln, from the material in and out, the circumferential seal, the dynamic seal of the end face, etc. Starting from the link, the atmosphere in the kiln is strictly isolated from the atmosphere, so as to achieve the purpose of protecting metallurgical materials and maintaining the surrounding environment in the production atmosphere

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