Movable plate blank submersed nozzle roaster

Abstract

The utility model provides a movable plate blank submersed nozzle roaster which comprises two operating handles which are connected in a rotating mode, a sealing plate is arranged on the tops of the operating handles, the longitudinal section of the sealing plate is in a semi-ring shape, and a mixed gas pipe is arranged in the middle of the sealing plate in a penetrating mode. One end of the mixed gas pipe is provided with a burner, and the other end is simultaneously provided with a compressed air pipe and a baking gas pipe; the two operating handles are rotationally connected through a handle hinge and are arranged in a crossed mode. Through the clamping spring and the sealing plate, the phenomenon that flames and hot air generated by the burner escape from side holes of the submersed nozzle is reduced, the flame intensity and the hot air strength are improved, the baking quality is further improved, meanwhile, sundries in a gap between the upper nozzle and the stopper rod head can be blown out, it is guaranteed that the upper nozzle and the stopper rod head are closed tightly, and the service life of the stopper rod head is prolonged. And the problem of automatic downward flowing does not occur during casting.

Description

TECHNICAL FIELD

[0001] The utility model belongs to metal smelting technical field relates to a movable slab immersion type water gap roaster. BACKGROUND

[0002] Before the continuous casting machine pours, the standby tundish and the immersion type water gap are roasted to reduce the temperature difference between the molten steel and the refractory material, prevent the condensation of the refractory material due to the low roasting temperature, and cause the problems of the stopper pad rod running, automatic downflow, and the immersion type water gap condensation during the pouring process of the continuous casting machine.

[0003] When the standby tundish is roasted, the roaster flame roasts from top to bottom at the tundish cover roasting hole position, the upper water gap at the bottom of the tundish and the stopper rod head are in a closed state and are relatively far from the roaster burner, and the flame sprayed by the roaster burner also escapes from the tundish cover after rolling back at the tundish bottom, which causes poor roasting quality of the standby tundish. Therefore, when the standby tundish is roasted, the stopper rod needs to be pressed open to a certain height, so that a gap with a certain distance is generated between the stopper rod and the upper water gap, and then the roasting is performed. The flame needs to pass through the inner cavity of the immersion type water gap from bottom to top to the position of the upper water gap and the stopper rod head during roasting. During the roasting of the tundish, the steel slag, iron oxide skin, and dry material on the tundish cover and the tundish wall fall and accumulate in the gap between the upper water gap and the stopper rod head, which causes the stopper rod head and the upper water gap to be not tightly closed before pouring, and the automatic downflow problem occurs during pouring.

[0004] The existing slab roasting immersion type water gap inserts a burner into one side hole of the water gap and blocks a steel plate on the other side hole, so that the flame sprayed by the burner roasts the water gap body and also roasts the upper water gap and the stopper rod head. However, since the burner is not easy to be completely sealed when inserted into one side hole of the water gap, and the blocking effect of the steel plate on the other side hole is poor, a considerable part of the flame escapes from the water gap side hole, the intensity and heat of the flame entering the inner cavity of the water gap, the upper water gap, and the stopper rod head position are obviously insufficient, the roasting quality of the immersion type water gap, the upper water gap of the tundish, and the stopper rod head is poor, the impurities accumulated in the gap between the upper water gap and the stopper rod head cannot be completely blown out, and the problems of the stopper pad rod running, automatic downflow, and the immersion type water gap condensation occur during the pouring process of the continuous casting machine, which affects the success rate of the pouring of the continuous casting machine.

[0005] Therefore, a movable slab immersion type water gap roaster is needed to solve the above technical problems and is suitable for roasting immersion type water gaps with different side hole sizes. UTILITY MODEL CONTENTS

[0006] The utility model discloses a mobile slab submergence type nozzle roaster which solves the problem of the poor sealing of the tundish upper nozzle and stopper after roasting, the running of the stopper pad, the automatic flow, and the freezing of the submergence type nozzle during the casting process of the continuous casting machine, and reduces the success rate of the casting process of the continuous casting machine.

[0007] To this end, the utility model takes the following technical scheme:

[0008] A mobile slab submergence type nozzle roaster, comprising two operation handles connected in rotation, the operation handle top is equipped with the sealing plate, the sealing plate longitudinal section is half ring shape, and the middle part is equipped with the mixed gas pipe, one end of the mixed gas pipe is equipped with the burner, and the other end is equipped with the compressed air pipe and the roasting coal gas pipe simultaneously.

[0009] Further, the two operation handles are connected in rotation through handle hinges and are arranged in cross.

[0010] Further, the adjacent operation handles are connected through clamping springs.

[0011] Further, the sealing plates are vertically arranged, and the adjacent sealing plates are in an embracing state.

[0012] Further, the compressed air pipe and the roasting coal gas pipe are both metal hoses.

[0013] The utility model has the advantages that:

[0014] The utility model is combined with the clamping spring and the sealing plate, reduces the phenomenon that the flame and hot air generated by the burner escape from the side hole of the submergence type nozzle, improves the flame intensity and hot air strength, and improves the roasting quality, blows out the sundries gathered in the gap between the upper nozzle and the stopper head, ensures the close sealing of the upper nozzle and the stopper head, and solves the problems of the running of the stopper pad, the automatic flow, and the freezing of the submergence type nozzle during the casting process of the continuous casting machine. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 The utility model discloses a structure schematic drawing.

[0016] In the drawing, 1 is the operation handle, 2 is the clamping spring, 3 is the handle hinge, 4 is the sealing plate, 5 is the burner, 6 is the mixed gas pipe, 7 is the compressed air pipe, and 8 is the roasting coal gas pipe. DETAILED DESCRIPTION

[0017] The technical scheme of the utility model will be described in connection with the drawings and implementation methods.

[0018] AsFigure 1 As shown in the drawings, a mobile slab submergence-type nozzle roaster comprises two operating handles 1 which are connected by handle hinges 3 and are arranged in a cross shape, and adjacent operating handles 1 are connected by clamping springs 2 and are connected close to the tail ends of the operating handles 1.

[0019] A sealing plate 4 is arranged on the top of the operating handle 1, the sealing plate 4 is arranged vertically, and adjacent sealing plates 4 are arranged in an embracing shape, the longitudinal section of the sealing plate 4 is a half ring, a mixed gas pipe 6 is arranged in the middle part, one end of the mixed gas pipe 6 is provided with a burner 5, and the other end is provided with a compressed air pipe 7 and a roasting gas pipe 8 at the same time, and the compressed air pipe 7 and the roasting gas pipe 8 are provided with valves; specifically, the compressed air pipe 7 and the roasting gas pipe 8 are metal hoses.

[0020] The use process of the utility model is as follows:

[0021] First step: open the roasting gas valve, light the burner 5 flame, and then open the compressed air pipe 7 valve, and adjust the compressed air pipe 7 valve and the roasting gas pipe 8 valve to the appropriate position according to the flame of the burner 5;

[0022] Second step: because the two sealing plates 4 are in an embracing shape before the roaster is used, the two sealing plates 4 are stretched outward by holding the operating handles 1 with both hands, so that the adjacent sealing plates 4 are opened to a certain distance, and then the two burners 5 on the two sealing plates 4 are placed in the two side holes of the submergence-type nozzle, and the operating handles 1 are loosened, and under the action of the clamping spring 2, the sealing plate 4 is tightly attached to the side wall of the side hole of the submergence-type nozzle, so that the flame is prevented from overflowing from the side hole of the nozzle;

[0023] Third step: after the tundish stopper rod is pressed to a certain height, a gap is generated between the tundish stopper rod and the upper nozzle;

[0024] Fourth step: normally roast the submergence-type nozzle, according to the roasting temperature of the submergence-type nozzle, the tundish upper nozzle, the stopper rod head, and the accumulation of impurities in the gap between the tundish upper nozzle and the stopper rod head, continue to adjust the air volume of the compressed air pipe 7 and the roasting gas pipe 8;

[0025] Fifth step: when the submergence-type nozzle roasting time and temperature meet the process requirements, and the continuous casting machine needs to replace the nozzle, close the compressed air pipe 7 valve and the roasting gas pipe 8 valve, and the roasting is completed, and the device can be taken out for standby.

Claims

1. A mobile slab submergence-type nozzle baker characterized by comprising: The utility model relates to a kind of cooking gas stove, including two operating handles (1) of rotation connection, the operating handle (1) top is equipped with sealing plate (4), the longitudinal section of sealing plate (4) is half ring, the middle is equipped with mixed gas pipe (6), one end of mixed gas pipe (6) is equipped with burner (5), the other end is equipped with compressed air pipe (7) and baking gas pipe (8) simultaneously.

2. A mobile slab submergence nozzle baker according to claim 1, characterized in that, Two operating handles (1) are rotationally connected by handle hinge (3), and they are cross arranged.

3. A mobile slab submergence nozzle baker according to claim 1, characterized in that, Adjacent operating handle (1) is connected by clamping spring (2).

4. A mobile slab submergence nozzle baker according to claim 1, characterized in that, Sealing plate (4) is vertically arranged, and adjacent sealing plate (4) is in the form of embracing.

5. A mobile slab submergence nozzle baker according to claim 1, characterized in that, Compressed air pipe (7) and baking gas pipe (8) are both metal hose.

Images