1.1 Background

The steel ladle nozzle in the steel plant is made of ceramic material and should reach around 800 ℃ during use. Therefore, the nozzle is always in a heating and insulation state before use. The traditional heating and insulation measure for the nozzle is to burn gas for 24 hours and bake, which consumes an average of about 350 cubic meters of gas per hour, greatly causing energy waste and increasing carbon emissions.

1.2 Overview

This device adopts an electric heating method, and the electric heating element is composed of silicon carbon rods, which has high thermal efficiency and can achieve energy conservation and zero carbon emissions.

This device is a specialized equipment designed for preheating needs before the water inlet of a steel plant is put online. Its main function is to ensure that the water outlet can reach the appropriate working temperature when it goes online through preheating treatment, thereby avoiding the problem of water outlet explosion caused by low temperature or moisture. The emergence of this device can achieve temperature and time adjustment, and can reach the preset temperature within the specified time, greatly improving the continuity and safety of steel production.

2、 Basic composition

The intelligent electric water outlet baking device mainly consists of furnace lining, furnace shell, trolley, heater, and furnace machinery. The furnace lining is constructed with refractory materials, which can withstand high temperature heat loads and reduce heat dissipation losses. The furnace shell is the steel structure part of the furnace body, used to fix the furnace lining and bear its weight. As a movable furnace bottom, the trolley facilitates the loading and unloading of large workpieces outside the furnace. The heater is suspended on the inner wall of the furnace using silicon carbon rods to ensure uniform temperature distribution inside the furnace. The furnace machinery includes a furnace door and a trolley traction mechanism, which achieves smooth operation of the furnace door and trolley through chain wheel deceleration transmission. The schematic diagram is as follows:

4、 Product features

Heating method: abandoning the traditional preheating method of continuous combustion of blast furnace, coke oven gas or natural gas, and adopting electric heating;

Temperature intelligent control: It can achieve precise temperature control throughout the entire heating and insulation process, ensuring uniform and stable preheating process;

Efficient and environmentally friendly: With a high electric heating conversion rate, compared to traditional combustion methods, it consumes less energy, reduces reliance on fossil fuels, and helps with green production. In addition, the electric heating method does not produce smoke, dust, or waste gas, which meets environmental standards and creates a clean working environment;

Safe and reliable: No longer using high-risk gases as heating media, greatly reducing the safety of operators. And the equipment is easy to operate, while also reducing the labor intensity of workers.

5、 Application scenario examples

The intelligent electric water nozzle baking device is widely used in the continuous casting production line of steel plants. In the continuous casting process, the nozzle, as a key component for the flow of liquid metal, its working state directly affects the quality of the billet and the continuity of production. By using this device to preheat the water inlet, many problems such as cracking caused by low water inlet temperature can be effectively avoided, thereby improving the quality of the casting billet and the stability of production.