Heater pipeline structure of roasting furnace

Abstract

The invention relates to a heater pipeline structure of a roasting furnace. The heater pipeline structure comprises a secondary air inlet pipe and a fuel gas inlet pipe. The secondary air inlet pipe comprises an air valve connecting pipe and a main air inlet pipe which are communicated. A burner is fixedly connected to one end of the main air inlet pipe. A first connecting flange is arranged at the other end of the main air inlet pipe. An inner pipe is arranged in the main air inlet pipe. One end of the inner pipe is fixedly connected with the burner, and the other end of the inner pipe is fixed and supported by the aid of the first connecting flange. The burner is provided with a fuel gas nozzle and an air nozzle. One end of the inner pipe is communicated with the fuel gas nozzle, and the other end of the inner pipe is communicated with the fuel gas inlet pipe. The air valve connecting pipe is communicated with the air nozzle. The heater pipeline body structure of the roasting furnace has the advantages that fuel gas can be fully combusted, so that energy consumption is reduced.

Description

technical field [0001] The invention relates to a heater pipe body structure of a roasting furnace, which belongs to the technical field of used sand regeneration equipment. Background technique [0002] At present, my country has become the largest casting production country in the world. According to statistics, every 1 ton of castings needs to discharge 1 ton of waste sand and add 1 ton of new sand. However, the current situation of foundries in my country is that the discharge of old sand from foundry workshops accounts for 70% of the total discharge of solid waste. Therefore, recycling old sand can not only save precious new sand resources and reduce environmental pollution caused by discarding old sand, but also save costs and reduce the purchase and transportation costs of new sand, which has huge economic and social benefits. Therefore, the recycling of old sand has become an indispensable part of the modern foundry. [0003] There are many ways to regenerate old s...

AI Technical Summary

Problems solved by technology

Among them, the roaster is the main equipment for thermal regeneration, and its structural performance directly affects the quality of recycled sand. However, the effect of the traditional roaster is not ideal. Usually, the furnace body of the traditional roaster is equipped with a gas inlet pipe. At the same time, the secondary air inlet pipe is set close to the top of the gas inlet. This structural design often results in poor combustion effect of gas and high energy consumption.

Images