阅读说明：本技术 一种不停炉安全快速处理辊底炉辊径砖掉落故障的方法 (Method for safely and quickly processing roller diameter brick falling fault of roller hearth furnace without stopping furnace ) 是由 曹晋伟 王文峰 丁晨晖 张宝连 魏鹏洋 李久文 李麒 于 2020-06-15 设计创作，主要内容包括：本发明涉及辊底炉领域。一种不停炉安全快速处理辊底炉辊径砖掉落故障的方法,按照如下步骤进行,通过操作工作手柄,将两块厚度不同的钢板分别从炉口及炉尾在辊道上相向运动传输至炉内辊径砖掉落位置；通过操作工作手柄,使两块厚度不同的钢板继续相向运动,辊径砖被推至较薄的一块钢板上；通过操作工作手柄,使两块厚度不同的钢板同向运动,将两块厚度不同的钢板和处于较薄的一块钢板上的辊径砖运送出炉。本发明方法无需停炉降温,无需工作人员进入炉窑内处理,大大降低了故障处理时间和故障处理风险。(The invention relates to the field of roller hearth furnaces. A method for safely and quickly processing the falling fault of a roller diameter brick of a roller hearth furnace without stopping the furnace comprises the following steps of operating a working handle to transmit two steel plates with different thicknesses to the falling position of the roller diameter brick in the furnace from a furnace mouth and a furnace tail on a roller way in a relative motion way; the two steel plates with different thicknesses continuously move in opposite directions by operating the working handle, and the roller diameter brick is pushed to a thinner steel plate; the two steel plates with different thicknesses move in the same direction by operating the working handle, and the two steel plates with different thicknesses and the roller diameter brick on the thinner steel plate are conveyed out of the furnace. The method does not need to stop the furnace for cooling, does not need to enter the furnace for treatment by workers, and greatly reduces the fault treatment time and the fault treatment risk.)

1. A method for safely and quickly processing the falling fault of roller diameter bricks of a roller hearth furnace without stopping the furnace is characterized by comprising the following steps: the method comprises the following steps

Firstly, two steel plates with different thicknesses are respectively transmitted to a falling position of a roller diameter brick in a furnace from a furnace mouth and a furnace tail in a way of moving in opposite directions by operating a working handle;

step two, the two steel plates with different thicknesses continuously move in opposite directions by operating the working handle, and the roller diameter brick is pushed to a thinner steel plate;

and step three, operating the working handle to enable the two steel plates with different thicknesses to move in the same direction, and conveying the two steel plates with different thicknesses and the roller diameter brick on the thinner steel plate out of the furnace.

2. The method for safely and rapidly processing the falling fault of the roller diameter brick of the roller hearth furnace without stopping the furnace according to claim 1, is characterized in that: the thickness difference of the two steel plates with different thicknesses is more than or equal to 30mm, and the thickness of the thinner steel plate is more than or equal to 5mm and less than or equal to 10 mm.

3. The method for safely and rapidly processing the falling fault of the roller diameter brick of the roller hearth furnace without stopping the furnace according to claim 2, is characterized in that: the widths of the two steel plates with different thicknesses are more than or equal to 40cm, wherein the length of the thinner steel plate is more than or equal to 50cm, and the length of the thicker steel plate is more than or equal to 30 cm.

Technical Field

The invention relates to the field of roller hearth furnaces.

Background

The roller hearth furnace is generally used for heat treatment of medium and heavy plates, and roller diameter bricks are adopted at the roller diameter positions of a heat treatment furnace wall and a transportation roller way for supporting and banking due to the special structural form of the roller hearth furnace. Because the heating systems of the produced medium and heavy plates are different, the temperature of the furnace kiln needs to be increased and decreased frequently, and meanwhile, the loss of the conveying roller ways needs to be replaced by a certain number of conveying roller ways periodically; resulting in the looseness of partial roller diameter bricks, finally causing the roller diameter bricks to fall off and be clamped between two roller ways, and influencing the production stop of the steel plate.

When the condition occurs, the furnace needs to be shut down and cooled, and then workers enter the furnace for treatment. The treatment process relates to high-risk operation (limited space operation and gas area operation), the danger coefficient is high, the treatment time is long, and the normal operation time of the roller hearth furnace is influenced.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: how to safely and quickly take out the dropped roller diameter bricks.

The technical scheme adopted by the invention is as follows: a method for safely and quickly processing the falling fault of roller diameter bricks of a roller hearth furnace without stopping the furnace comprises the following steps

Firstly, two steel plates with different thicknesses are respectively transmitted to a falling position of a roller diameter brick in a furnace from a furnace mouth and a furnace tail in a way of moving in opposite directions by operating a working handle;

step two, the two steel plates with different thicknesses continuously move in opposite directions by operating the working handle, and the roller diameter brick is pushed to a thinner steel plate;

and step three, operating the working handle to enable the two steel plates with different thicknesses to move in the same direction, and conveying the two steel plates with different thicknesses and the roller diameter brick on the thinner steel plate out of the furnace.

The thickness difference of the two steel plates with different thicknesses is more than or equal to 30mm, and the thickness of the thinner steel plate is more than or equal to 5mm and less than or equal to 10 mm.

The widths of the two steel plates with different thicknesses are more than or equal to 40cm, wherein the length of the thinner steel plate is more than or equal to 50cm, and the length of the thicker steel plate is more than or equal to 30 cm.

The invention has the beneficial effects that: the method does not need to stop the furnace for cooling, does not need to enter the furnace for treatment by workers, and greatly reduces the fault treatment time and the fault treatment risk.

Drawings

FIG. 1 is a schematic view of two steel plates with different thicknesses moving in opposite directions to push a roller diameter brick;

FIG. 2 is a schematic view of a roll diameter block being pushed onto a thinner steel plate;

FIG. 3 is a schematic drawing of discharging the furnace by carrying the roller diameter bricks with two steel plates with different thicknesses in the same direction.

Detailed Description

The hot rolling mill of Shanxi Tai Steel stainless Steel Limited company hot rolling mill produces products with various structures, complicated structure and large difference of product variety and process temperature, and roller diameter bricks drop in the production process, and the fault of the original treatment needs workers to enter the furnace for treatment. When the fault occurs, only the furnace shutdown and temperature reduction need at least 72 hours, and the delivery date of the contract is seriously influenced.

After the process of the method is adopted, 1 steel plate with the diameter of 40mm and 1 steel plate with the diameter of 10mm are respectively conveyed to the falling position of the roller diameter brick in the furnace from the furnace mouth and the furnace tail roller way by operating the working handle. The dropped roller diameter bricks were pushed onto a 10mm steel plate. The roller way of the operating handle moves in the same direction to convey the steel plate and the roller diameter brick out of the furnace, and faults are eliminated. In order to ensure that the roller diameter brick can be smoothly pushed onto a steel plate with the thickness of 10mm, the width of the two steel plates with different thicknesses is 40cm, wherein the length of the thinner steel plate is 50cm, and the length of the thicker steel plate is 30 cm.

In the embodiment, the roller diameter bricks clamped between the furnace bottom rollers are pushed to turn over by utilizing the thickness difference of the steel plates so as to be carried out of the furnace without cooling; the treatment time is only about 1-2 hours. Compared with the manual furnace entering treatment after the furnace is stopped and cooled, the time is reduced by about 72 hours. The fault handling time is greatly reduced; the method has the advantages that workers do not need to enter the furnace for operation, high-risk operation is avoided, and the risk of fault handling is greatly reduced.