TWI456162B - Blast furnace stave thickness ultrasonic measuring method and device thereof - Google Patents

Claims (16)

A blast furnace stave thickness ultrasonic measuring method comprises the following steps: (a) providing a blast furnace having a stave having an inner side; (b) embedding at least one metal rod and a test a temperature element in the cooling wall of the blast furnace, the metal rod has a head end and an end, the end is flush with the inner side surface of the cooling wall; (c) an ultrasonic wave is input from the head end of the metal rod to Transmitting the ultrasonic wave to the end of the metal rod; and (d) receiving an echo reflected from the end of the metal rod, and calculating the length of the metal rod based on the echo, thereby deriving the thickness of the cooling wall. The method of claim 1, wherein the material of the metal rod is the same as the material of the cooling wall. The method of claim 2, wherein the material of the metal rod is selected from the group consisting of copper, stainless steel, and cast iron. The method of claim 1, wherein in the step (a), the stave has an inner furnace brick having a brick surface, the inner side of the cooling wall being the brick surface. The method of claim 1, wherein the blast furnace has a furnace shell covering the cooling wall, and the head end of the metal rod is exposed outside the furnace shell. The method of claim 5, wherein the furnace shell has a flange blind plate, and the head end of the metal rod is fixed to the flange blind plate. The method of claim 1, wherein the temperature measuring element comprises a temperature measuring quartz A rod and a stainless steel tube, the temperature measuring quartz rod is disposed in the stainless steel tube. The method of claim 7, further comprising filling a refractory mud between the temperature measuring quartz rod and the stainless steel tube. The method of claim 7, wherein the blast furnace has a furnace shell having a flange blind plate, and one end of the temperature measuring quartz rod and one end of the stainless steel tube are fixed to the flange blind plate. The method of claim 9, wherein the temperature measuring component further comprises a temperature measuring fiber connector and a quartz piece, wherein the temperature measuring fiber connector is fixed to the flange blind plate, and the quartz piece is fixed on the temperature measuring fiber connector. And one end of the temperature measuring quartz rod abuts the quartz piece. A blast furnace stave thickness ultrasonic measuring device comprises: at least one metal rod embedded in a cooling wall of a blast furnace, having a head end and an end, the head end being exposed outside the blast furnace, the end Is located in the blast furnace; a temperature measuring component is embedded in the cooling wall of the blast furnace; and an ultrasonic transceiving measuring unit is disposed at the head end of the metal rod and can be input from the head end of the metal rod An ultrasonic wave. The device of claim 11, wherein the material of the metal bar is the same as the material of the cooling wall. The device of claim 12, wherein the material of the metal rod is selected from the group consisting of copper, stainless steel, and cast iron. The device of claim 11, wherein the end of the metal rod is flush with the inner side of one of the stave walls. The device of claim 11, wherein the temperature measuring component comprises a temperature measuring quartz rod and a stainless steel tube, and the temperature measuring quartz rod is disposed in the stainless steel tube. The device of claim 15, wherein the temperature measuring component further comprises a temperature measuring fiber connector and a quartz plate, wherein the quartz plate is fixed on the temperature measuring fiber connector, and one end of the temperature measuring quartz bar abuts the quartz sheet.