A smelting process and smelting equipment for producing grade II hot-rolled threaded steel bars

Abstract

The invention discloses a smelting equipment for producing grade II hot-rolled threaded steel bar, which comprises a smelting mechanism, a feeding mechanism, a driving mechanism and a pressure relief mechanism, the feeding mechanism is fixedly installed on the top of the side of the smelting mechanism, and the driving mechanism is fixedly installed on the feeding mechanism. On the feeding mechanism, the pressure relief mechanism is fixedly installed above the smelting mechanism. The smelting mechanism is composed of a support base, a furnace body, a heat-insulating roof, a furnace door assembly, a heating assembly, a storage pan, an oxygen nozzle and a connecting pipe, and the furnace body is fixedly connected. Above the support seat, the heat-insulating top plate is fixedly connected above the furnace body, and the furnace door assembly is arranged on the front of the furnace body; the invention can carry out airtight feeding of materials by setting a feeding mechanism and a driving mechanism without opening the furnace body. Therefore, it can effectively avoid the heat dissipation inside the furnace body, which is more energy-saving, and by setting up a pressure relief mechanism, it can perform self-pressure relief according to the pressure in the furnace body, thereby ensuring the safety of the furnace body.

Description

technical field [0001] The invention relates to the technical field of smelting process and production of threaded steel bars, in particular to a smelting process for producing Class II hot-rolled threaded bars, and in particular to a smelting equipment for producing Class II hot-rolled threaded bars. Background technique [0002] Class II hot-rolled rebar is the steel bar with the new standard name of HRB335, and the second-grade rebar is the old name, which is a kind of hot-rolled ribbed rebar. Rebar In the construction industry, grade II rebar and grade III rebar are called in the past. In the new standard, grade II rebar is called HRB335, and grade III rebar is called HRB400. Widely used in civil engineering construction fields such as houses, bridges, and roads. During the production process of Class II hot-rolled rebar, impurities in the raw materials need to be smelted and removed. However, the insulation performance of common smelting devices is average, especially f...

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Problems solved by technology

Widely used in civil engineering construction fields such as houses, bridges, and roads. During the production process of Class II hot-rolled rebar, impurities in the raw materials need to be smelted and removed. However, the insulation performance of common smelting devices is average, especially for raw materials. The opening and closing of the door body causes a large amount of heat loss, thus resulting in a waste of resources, and the common smelting furnace is generally airtight, with the increase of temperature and pressure, the pressure in the furnace gradually increases. Manual pressure relief is required during the process, which is not only cumbersome to operate, but also prone to danger

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