Continuous automatic rotary rectangular tunnel furnace made of magnetic materials and production method of continuous automatic rotary rectangular tunnel furnace

Abstract

The invention discloses a continuous automatic rotary magnetic material rectangular tunnel furnace and a production method thereof, a first longitudinal furnace body is sequentially divided into a section A, a section B, a section C, a section D and a section A. Each section of the first longitudinal furnace body represents different temperature intervals, the temperatures of the section A, the section B, the section C and the section D are sequentially increased, and the vault heights of the sections of the first longitudinal furnace body are different; the vault heights of the A section, the B section, the C section and the D section are sequentially increased; a sunken furnace door is arranged at the inlet of the section A at the head end of the first longitudinal furnace body and is used for sealing the inlet in the operation process of the furnace body and reducing air circulation; a movable double-atmosphere pipeline is arranged on the first longitudinal furnace body, the movable double-atmosphere pipeline is used for introducing different atmosphere gases into a trolley of the first longitudinal furnace body, and atmosphere tail gas in the trolley is recycled through a recycling pipeline; by means of the PLC automatic control system, the rectangular tunnel furnace can automatically operate the furnace inlet door and the automatic swing mechanism, and unmanned intelligent operation is achieved.

Description

Technical field [0001] The invention of the rectangular tunnel furnace and its production method of the continuous automatic rotation of the magnetic material, which belongs to the technology field of annealing equipment for magnetic materials. Background technique [0002] Due to the influence of the existing magnetic materials, due to the factors such as process and cost, the tunnel furnace is rarely used to complete the annealing process. A few magnetic materials that use the tunnel furnace annealing are in the high insulation stage. The shortcomings will also lead to uneven temperature. Burning mouth and heating high temperature section consumes greater energy compared to the heating and low temperature section of the mouth. At the same time, after the use of the current tunnel furnace products can be used, it can only be directly discharged into the environment or combustion treatment, pollution environment, pollution environment , High economic costs. At the same time, ther...

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Problems solved by technology

[0002] In the annealing of existing magnetic materials, due to factors such as technology and cost, tunnel furnaces are rarely used to complete the annealing process. A few magnetic materials that use tunnel furnaces for annealing are in the high heat preservation stage, and the flow rate of heat to the low temperature section cannot be controlled. Insufficient temperature will also lead to uneven temperature. Compared with the low-temperature section of burner heating, the high-temperature section of the burner consumes more energy. At the same time, after the protective gas of the existing tunnel furnace product is used, it can only be directly discharged into the environment or burned, polluting the environment. , high economic cost

At the same time, the existing similar tunnel furnace has a small footprint and the continuous rotation of the trolley requires personnel to operate, so it is impossible to seal the traverse section after the furnace is released, resulting in high ambient temperature and poor working environment.

Moreover, the furnace door of the traditional tunnel furnace cannot be completely sealed into the furnace mouth. When the exhaust fan is working, it will suck a large amount of cold air outside the furnace. fluctuation

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