Balanced heating type resistance furnace

Abstract

The invention discloses a balanced heating type resistance furnace, and belongs to the field of electric furnaces, the balanced heating type resistance furnace comprises a resistance furnace body, the lower inner wall of the resistance furnace body is fixedly connected with a partition temperature-equalizing plate located on the upper side of an electric heating element, and a plurality of temperature-equalizing adjusting holes are formed in the partition temperature-equalizing plate; a plurality of air-equalizing holes communicated with the temperature-equalizing adjusting holes are formed in the partition temperature-equalizing plate, air drum type supporting force bags are arranged in the temperature-equalizing adjusting holes, and heat generated by the electric heating element can be subjected to contact type heat conduction and partition heat radiation under the action of the air drum type supporting force bags and a heat radiation plate, so that the heat transfer efficiency of the electric heating element is improved; and thus, auxiliary heat conduction is conducted on a material shielding position area in the furnace, the balance of the temperature in the furnace is effectively improved, the heating efficiency of the resistance furnace body on the materials is improved, the material heating uniformity is effectively improved, the material smelting quality is improved, meanwhile, the energy loss of the resistance furnace body is reduced, and the environment friendliness of the resistance furnace body is improved.

Description

technical field [0001] The invention relates to the field of electric furnaces, and more specifically, relates to a balanced heating resistance furnace. Background technique [0002] Resistance furnace is an electric furnace with Joule heat generated by current passing through a conductor as the heat source. With the invention of nickel-chromium alloy, resistance furnaces have been widely used in industry by the 1920s. Industrial resistance furnaces are generally made of electric heating It is composed of components, masonry, metal shell, furnace door, furnace machinery and electrical control system, etc., and the heating power ranges from less than one kilowatt to several thousand watts. [0003] Resistance furnace is divided into direct heating and indirect heating according to the way of electric heat generation. At present, most resistance furnaces are indirect heating resistance furnaces, which are equipped with a resistance body specially used to realize electric-ther...

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Problems solved by technology

[0004] When the resistance furnace smelts metals with low melting points such as aluminum and magnesium, in order to improve the uniformity of the temperature in the furnace, fans are mostly used to enhance the heat transfer in the furnace by convection, but sufficient flow is required due to gas convection. Space to complete the conduction of heat energy. When there are materials stored in the furnace, the materials will block the air flow, reducing the fluidity of the gas in the furnace, affecting the temperature balance in the resistance furnace, and reducing the working efficiency of the resistance furnace. , thus increasing the energy loss of the resistance furnace

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