An oxygen-enriched combustion type ladle roaster

Abstract

The present invention relates to the field of ladle baking equipment, and in particular to an oxygen-enriched combustion type ladle baking device, comprising a ladle baking heater, the ladle baking heater comprising a vertical frame, a horizontal frame is arranged on the inner side of the top of the vertical frame, one end of the horizontal frame is fixedly connected to a fixed frame, and the other end of the horizontal frame is arranged with a plurality of connecting ports, the connecting ports are used to connect a gas source, the connecting ports are all connected to conduits, the conduits are all installed inside the horizontal frame, the ends of the conduits away from the connecting ports are respectively fixedly connected to an air supply pipe and an oxygen supply pipe, the air supply pipe and the oxygen supply pipe both pass through the end of the fixed frame, the bottom of the fixed frame is fixedly connected to an end cover, the end of the air supply pipe away from the conduit is fixedly connected to a ring bin, and the ring bin is installed inside the end cover. The present invention can realize synchronous baking of a large range of areas in the ladle body, is conducive to completing the temperature maintenance and average work of each area in the ladle body, and avoiding local overheating or overcooling.

Description

Technical Field

[0001] The invention relates to the field of ladle baking equipment, in particular to an oxygen-enriched combustion type ladle baking device. Background Art

[0002] In the steel production process, the ladle is a key container for holding and transporting molten steel, and its baking process has a vital impact on the quality of molten steel, production efficiency and energy consumption. Traditional ladle baking devices and methods have many disadvantages and are difficult to meet the efficient and high-quality production needs of the modern steel industry. The previous ladle baking equipment was relatively simple and rigid in structural design. The baking flame can only heat the ladle at a single angle and fixed position, and cannot flexibly adapt to the complex shape and structure inside the ladle body, especially the junction between the side wall and the bottom of the ladle, the center of the bottom and other areas, which are often difficult to be fully and evenly baked.

[0003] In addition, the traditional baking method has serious deficiencies in flame energy utilization. The flame beam is ejected in a dispersed state, and a large amount of flame energy is wasted in the diffusion process. It cannot be effectively gathered on the heated part of the ladle, which greatly reduces the effective energy actually used to heat the ladle. At the same time, during the baking process, as the temperature requirements of different parts of the ladle change, there is a lack of convenient and effective means to dynamically adjust the baking position, direction and oxygen supply range of the flame, making it difficult to achieve precise control of the internal temperature of the ladle. Local overheating or overcooling is prone to occur, further affecting the quality of molten steel and production continuity. Therefore, we propose an oxygen-enriched combustion ladle baking device to solve the above-mentioned problems. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the background technology and to propose an oxygen-enriched combustion type ladle roaster.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is: an oxygen-enriched combustion type ladle roaster, comprising a ladle roasting heater, the ladle roasting heater comprising a vertical frame, a horizontal frame is arranged on the inner side of the top of the vertical frame, one end of the horizontal frame is fixedly connected to a fixed frame, and the other end of the horizontal frame is arranged with a plurality of connecting ports, the connecting ports are used to connect a gas source, the connecting ports are all connected to conduits, the conduits are all installed inside the horizontal frame, the ends of the conduits away from the connecting ports are respectively fixedly connected to a gas supply pipe and an oxygen supply pipe, the gas supply pipe and the oxygen supply pipe both pass through the end of the fixed frame, the bottom of the fixed frame is fixedly connected to an end cover, the end of the gas supply pipe away from the conduit is fixedly connected to a ring bin, the ring bin is installed inside the end cover, the outer periphery of the ring bin is fixedly connected to evenly distributed connecting pipes, the end of the connecting pipe away from the connecting pipe is installed with a rotating interface, the bottom of the rotating interface is rotatably connected to a nozzle, and the end of the nozzle away from the rotating interface is installed with a nozzle.

[0006] Preferably, a fixed shaft is rotatably connected to one side of the middle portion of the horizontal frame, and sliding frames are installed at both ends of the fixed shaft, and the sliding frames are slidably connected to the front and rear sides of the upper portion of the vertical frame.

[0007] Preferably, the bottom of the slide is fixedly connected with a top extension sleeve, the inner side of the bottom of the top extension sleeve is threadedly connected with a threaded rod, the bottom of the threaded rod is installed with a motor, and the motor is installed inside the stand.

[0008] Preferably, a hydraulic rod is rotatably connected to the upper middle portion of one side of the vertical frame, and one end of the hydraulic rod away from the vertical frame is rotatably connected to one side of the bottom end of the horizontal frame. Guard plate frames are provided on the front and rear sides of the hydraulic rod, and the guard plate frames are fixedly connected to the vertical frame.

[0009] Preferably, a ladle body is disposed at the lower side of the end cover, and evenly distributed through holes are opened at the outer periphery of the end cover, the through holes are all connected to corresponding through openings, and the through openings are all opened at the bottom of the end cover.

[0010] Preferably, one end of the oxygen supply pipe away from the catheter is fixedly connected to an insulation pipe, and a nozzle is provided at the end of the insulation pipe, and the nozzle is arranged between a plurality of nozzles.

[0011] Preferably, a fixing seat is installed on the upper part of the outer periphery of the insulation tube, and a plurality of support rods are rotatably connected to the outer periphery of the fixing seat. The ends of the support rods away from the fixing seat are rotatably connected to fixing rings, and the fixing rings are installed on the lower part of the outer periphery of the nozzle, and the nozzle is rotatably connected to the fixing rings.

[0012] Preferably, the top of the oxygen supply pipe passes through the top of the ring warehouse and the fixed warehouse, the fixed warehouse is arranged at the lower part of the ring warehouse, and the fixed warehouse is installed in the middle part of the bottom end of the end cover. A limiting cavity is arranged in the middle part of the fixed warehouse, and a limiting ring is slidably connected inside the limiting cavity. The limiting ring is fixedly connected to the middle part of the outer periphery of the oxygen supply pipe, and a reset spring is arranged at the lower part of the limiting ring. The reset spring is installed in the lower part of the limiting cavity, and the reset spring is sleeved on the lower part of the outer periphery of the oxygen supply pipe. Two connecting holes are opened in the lower part of the outer periphery of the oxygen supply pipe, and solenoid valves are installed inside the connecting holes, and the connecting holes are respectively arranged at the upper and lower parts of the limiting ring.

[0013] Preferably, exhaust holes are provided on both sides of the upper outer periphery of the fixed bin, valve bodies are installed inside the exhaust holes, a plurality of mounting brackets are fixedly connected to the upper outer periphery of the fixed bin, and a rotating interface is rotatably connected to the inner side of a portion of the mounting bracket away from the fixed bin.

[0014] Preferably, a guide hole is connected to one side of the lower part of the limiting cavity, and the guide hole is arranged on one side of the lower part of the fixed bin, and an impeller is arranged on the side of the guide hole away from the limiting cavity, and a rotating shaft is fixedly connected to the middle of the bottom end of the impeller, and a driving gear is fixedly connected to the bottom of the rotating shaft, and the impeller, the rotating shaft and the driving gear are all arranged on one side of the lower part of the fixed bin, and the impeller, the rotating shaft and the driving gear are all rotatably connected to the fixed bin, and one side of the driving gear is meshed with a transmission gear ring, and the transmission gear ring is rotatably connected to the lower part of the outer periphery of the fixed bin, and a plurality of fixed gears are meshed with the outer periphery of the transmission gear ring, and the fixed gears are all fixedly connected to the upper part of the outer periphery of the nozzle.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] When the ladle body is baked, the hydraulic rod can be used to drive the cross frame to deflect, so that the flame end of the baking part can directly bake the inner side wall and the bottom of the ladle body. At the same time, the motor inside the vertical frame can drive the threaded rod to rotate, and the threaded rod can drive the top sleeve to rotate, and the top sleeve can drive the slide and the cross frame to adjust the overall height, which is beneficial to the actual baking of the ladle body. At the same time, the nozzles at the end of the nozzle pipe are all provided with a distorted angle, and the nozzles of the nozzles are all facing one point, so that the flame beams sprayed from each nozzle can be effectively concentrated, and the flame energy can be gathered, thereby effectively accelerating the baking speed of the ladle body and avoiding the dispersion of the flame beam affecting the baking effect.

[0017] When the ladle body is baked, people can open and close the solenoid valve in the lower connecting hole of the oxygen supply pipe, so that oxygen can be discharged through the guide hole. When the oxygen is discharged, it will impact the impeller, thereby driving the impeller to rotate, so that the driving gear coaxial with the impeller can rotate synchronously, and the driving gear can drive the transmission gear ring meshing with it to rotate, and the transmission gear ring can drive the various fixed gears meshing with it on the outside to rotate, and the fixed gear can drive the nozzle to rotate as a whole, so that the nozzle can be rotated to change the direction of the nozzle, so as to adjust the baking position of the flame beam and realize continuous baking of different positions inside the ladle body, which is beneficial to actual baking work.

[0018] In the process of adjusting the direction and range of flame baking, when the nozzle direction adjustment is completed, people can open and close the solenoid valve in the lower connecting hole of the oxygen supply pipe according to needs, so that part of the oxygen inside the oxygen supply pipe can be discharged to the upper part of the limiting cavity through the connecting hole, so that the upper pressure in the limiting cavity increases, and the limiting ring is forced downward. At this time, the oxygen supply pipe can be extended under the drive of the limiting ring, so that the oxygen supply pipe and the insulation pipe can be extended downward, so that the oxygen can be further approached to the nozzle when it is sprayed through the nozzle, so as to supplement the oxygen around the flame, and at the same time, it can effectively increase the injection range of oxygen, so that the flame coverage range can be effectively increased, which is conducive to achieving uniform baking of the ladle body and avoiding the situation where the flame beam is short and cannot fully bake the bottom of the ladle body.

[0019] In the process of adjusting the oxygen supply range, when the fixed seat moves, it will drive the various fixed rings to deflect through the support rod, so that the nozzle can be deflected synchronously, driving the nozzle and the nozzle to disperse, and the flame beam ejected from the nozzle can be separated, thereby achieving further adjustment of the baking range, which is beneficial to the regional temperature increase and insulation work in the middle and late stages of baking, and can achieve synchronous baking of a large range of areas in the ladle body, which is beneficial to complete the temperature maintenance and average work of each area in the ladle body, avoiding local overheating or overcooling. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the front three-dimensional structure of an oxygen-enriched combustion ladle roaster of the present invention;

[0021] Figure 2 It is a partial structural schematic diagram of a hydraulic rod of an oxygen-enriched combustion type ladle roaster of the present invention;

[0022] Figure 3 It is a partial structural schematic diagram of the top extension sleeve of an oxygen-enriched combustion ladle roaster of the present invention;

[0023] Figure 4 It is a partial structural schematic diagram of an end cover of an oxygen-enriched combustion ladle roaster according to the present invention;

[0024] Figure 5 It is a partial structural schematic diagram of a connecting pipe of an oxygen-enriched combustion type ladle roaster of the present invention;

[0025] Figure 6 It is a partial structural schematic diagram of the nozzle of an oxygen-enriched combustion ladle roaster of the present invention;

[0026] Figure 7 It is a partial structural schematic diagram of the impeller of an oxygen-enriched combustion ladle roaster of the present invention;

[0027] Figure 8The present invention is a schematic diagram of the local structure of the limit ring of an oxygen-enriched combustion ladle roaster.

[0028] 1. Ladle baking heater; 101. Ladle body; 102. Stand; 103. End cover; 104. Fixed frame; 105. Horizontal frame; 106. Through hole; 107. Slide; 108. Connecting port; 109. Hydraulic rod; 110. Guard frame; 111. Through port; 112. Fixed shaft; 113. Top extension sleeve; 114. Threaded rod; 115. Fixed chamber; 116. Connecting pipe; 117. Air supply pipe; 118. Spray pipe; 119. Fixed ring ; 120, nozzle; 121, oxygen supply pipe; 122, ring chamber; 123, mounting frame; 124, fixed gear; 125, transmission gear ring; 126, rotating interface; 127, fixed seat; 128, support rod; 129, insulation tube; 130, nozzle; 131, return spring; 132, limit cavity; 133, guide hole; 134, impeller; 135, rotating shaft; 136, driving gear; 137, valve body; 138, limit ring; 139, exhaust hole. DETAILED DESCRIPTION

[0029] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0030] like Figure 1-Figure 8 The illustrated embodiment of an oxygen-enriched combustion ladle roaster comprises a ladle roasting heater 1, wherein the ladle roasting heater 1 comprises a vertical frame 102, a horizontal frame 105 is arranged on the inner side of the top of the vertical frame 102, one end of the horizontal frame 105 is fixedly connected to a fixed frame 104, and the other end of the horizontal frame 105 is arranged with a plurality of connecting ports 108, the connecting ports 108 are used to connect to a gas source, the connecting ports 108 are all connected to conduits, and the conduits are all installed inside the horizontal frame 105, and the ends of the conduits away from the connecting ports 108 are respectively fixedly connected to an air supply pipe 117 and an oxygen supply pipe 121, and the air supply pipe 117 and the oxygen supply pipe 121 both pass through the end of the fixed frame 104, and the bottom of the fixed frame 104 is fixedly connected to an end cover 108. 3. The end of the air supply pipe 117 away from the guide tube is fixedly connected with the ring chamber 122, and the ring chamber 122 is installed inside the end cover 103. The outer periphery of the ring chamber 122 is fixedly connected with the uniformly distributed connecting pipes 116, and the end of the connecting pipe 116 away from the connecting pipe 116 is installed with a rotating interface 126, and the bottom of the rotating interface 126 is rotatably connected with a nozzle 118, and the end of the nozzle 118 away from the rotating interface 126 is installed with a nozzle 120, and the lower side of the end cover 103 is provided with a ladle body 101, and the outer periphery of the end cover 103 is provided with uniformly distributed through holes 106, and the through holes 106 are all connected with corresponding through ports 111, and the through ports 111 are all opened at the bottom of the end cover 103;

[0031] Furthermore, in the specific implementation, people can use the ladle baking heater 1 to bake the ladle body 101. When in use, people can connect the ladle baking heater 1 to the gas source through the connecting port 108 to realize the supply of coal gas and oxygen. After the connection is completed, the coal gas and oxygen will be transmitted to the nozzle 118 and the insulation tube 129 respectively through the conduit inside the cross frame 105 and sprayed out. Thereafter, the coal gas can be ignited through the igniter at the end of the nozzle 120 to realize the baking of the inside of the ladle body 101. When the coal gas burns, oxygen will be sprayed out through the nozzle 130 to assist the flame. At the same time, the nozzle 120 at the end of the nozzle 118 is set with a distorted angle, and the nozzle of the nozzle 120 is all facing one point, so that the flame beams sprayed from each nozzle 120 can be effectively concentrated, realizing the gathering of flame energy, thereby effectively accelerating the baking speed of the ladle body 101 and avoiding the dispersion of the flame beam affecting the baking effect.

[0032] Among them, a fixed shaft 112 is rotatably connected to one side of the middle of the horizontal frame 105, and slides 107 are installed at both ends of the fixed shaft 112. The slides 107 are slidably connected to the front and rear sides of the upper part of the vertical frame 102. The bottom of the slide 107 is fixedly connected to a top extension sleeve 113, and the inner side of the bottom of the top extension sleeve 113 is threadedly connected to a threaded rod 114. The bottom of the threaded rod 114 is installed with a motor, and the motor is installed inside the vertical frame 102. A hydraulic rod 109 is rotatably connected to the middle of one side of the vertical frame 102, and one end of the hydraulic rod 109 away from the vertical frame 102 is rotatably connected to one side of the bottom end of the horizontal frame 105. Guard plate frames 110 are arranged on the front and rear sides of the hydraulic rod 109, and the guard plate frames 110 are fixedly connected to the vertical frame 102.

[0033] Furthermore, in a specific implementation, when baking the ladle body 101, people can adjust the relative position of the baking part and the ladle body 101 through the hydraulic rod 109, and the operation of the hydraulic rod 109 can drive the cross frame 105 to deflect, so that the baking part at the end of the cross frame 105 can be deflected synchronously, so that the flame end of the baking part can directly bake the inner side wall and bottom of the ladle body 101. At the same time, the operation of the motor inside the vertical frame 102 can drive the threaded rod 114 to rotate, and the threaded rod 114 can drive the top sleeve 113 to rotate, and the top sleeve 113 can drive the slide 107 and the cross frame 105 to adjust the overall height, which is beneficial to the actual baking of the ladle body 101.

[0034] Among them, the end of the oxygen supply pipe 121 away from the catheter is fixedly connected with an insulation pipe 129, and the end of the insulation pipe 129 is provided with a nozzle 130, and the nozzle 130 is arranged between the multiple nozzles 118. A fixing seat 127 is installed on the upper part of the outer periphery of the insulation pipe 129, and the outer periphery of the fixing seat 127 is rotatably connected with multiple support rods 128, and the ends of the support rods 128 away from the fixing seat 127 are rotatably connected with a fixing ring 119, and the fixing ring 119 is installed at the lower part of the outer periphery of the nozzle 118, and the nozzles 118 are rotatably connected to the fixing ring 119, and the upper outer periphery of the fixed bin 115 is provided with exhaust holes 139 on both sides, and the exhaust holes 139 are installed inside. A plurality of mounting brackets 123 are fixedly connected to the upper outer periphery of the fixed bin 115, and the inner side of a part of the mounting bracket 123 away from the fixed bin 115 is rotatably connected with a rotating interface 126;

[0035] Furthermore, in the specific implementation, in the process of adjusting the oxygen supply range, when the fixed seat 127 moves, it will drive the various fixed rings 119 to deflect through the support rod 128, so that the nozzle 118 can be deflected synchronously, driving the nozzle 118 and the nozzle 120 to disperse, so that the flame beam ejected from the nozzle 120 can be separated, thereby achieving further adjustment of the baking range, which is beneficial to the regional heating and insulation work in the middle and late stages of baking, and can achieve synchronous baking of a large range of areas in the ladle body 101, which is beneficial to complete the temperature maintenance and average work of each area in the ladle body 101, avoiding local overheating or overcooling.

[0036] Among them, the top of the oxygen supply pipe 121 passes through the ring warehouse 122 and the top of the fixed warehouse 115, the fixed warehouse 115 is arranged at the lower part of the ring warehouse 122, and the fixed warehouse 115 is installed in the middle of the bottom end of the end cover 103. A limited cavity 132 is arranged in the middle of the fixed warehouse 115, and a limited ring 138 is slidably connected inside the limited cavity 132. The limited ring 138 is fixedly connected to the middle part of the outer periphery of the oxygen supply pipe 121. A reset spring 131 is arranged at the lower part of the limited ring 138. The reset spring 131 is installed in the lower part of the limited cavity 132. The reset spring 131 is sleeved on the lower part of the outer periphery of the oxygen supply pipe 121. Two connecting holes are provided at the lower part of the outer periphery of the oxygen supply pipe 121. Solenoid valves are installed inside the connecting holes. The connecting holes are respectively arranged at the upper and lower parts of the limit ring 138.

[0037] Furthermore, in the specific implementation, in the process of adjusting the flame baking direction and range, when the nozzle 120 is adjusted in direction, people can open and close the solenoid valve in the lower connecting hole of the oxygen supply pipe 121 according to needs, so that part of the oxygen inside the oxygen supply pipe 121 can be discharged to the upper part of the limiting cavity 132 through the connecting hole, so that the upper pressure in the limiting cavity 132 increases, and the limiting ring 138 is forced downward. At this time, the oxygen supply pipe 121 can be extended under the drive of the limiting ring 138, so that the oxygen supply pipe 121 and the insulation pipe 129 can be extended downward, so that when the oxygen is sprayed through the nozzle 130, it can further approach the nozzle 120, so as to supplement the oxygen around the flame, and at the same time, it can effectively increase the injection range of oxygen, so that the flame coverage range can be effectively increased, which is conducive to achieving uniform baking of the ladle body 101 and avoiding the situation that the flame beam is short and cannot fully bake the bottom of the ladle body 101.

[0038] Among them, a guide hole 133 is connected to one side of the lower part of the limiting cavity 132, and the guide hole 133 is arranged on one side of the lower part of the fixed chamber 115. An impeller 134 is arranged on the side of the guide hole 133 away from the limiting cavity 132. A rotating shaft 135 is fixedly connected to the middle part of the bottom end of the impeller 134, and a driving gear 136 is fixedly connected to the bottom of the rotating shaft 135. The impeller 134, the rotating shaft 135 and the driving gear 136 are all arranged on one side of the lower part of the fixed chamber 115. The impeller 134, the rotating shaft 135 and the driving gear 136 are all rotatably connected to the fixed chamber 115. One side of the driving gear 136 is meshedly connected with a transmission gear ring 125, which is rotatably connected to the lower part of the outer periphery of the fixed chamber 115. The outer periphery of the transmission gear ring 125 is meshedly connected with a plurality of fixed gears 124, and the fixed gears 124 are all fixedly connected to the upper part of the outer periphery of the nozzle 118.

[0039] Furthermore, in a specific implementation, when baking the ladle body 101, people can open and close the solenoid valve in the lower connecting hole of the oxygen supply pipe 121, so that oxygen can be discharged through the guide hole 133. When the oxygen is discharged, it will impact the impeller 134, thereby driving the impeller 134 to rotate, so that the driving gear 136 coaxial with the impeller 134 can rotate synchronously, and the driving gear 136 can drive the transmission gear ring 125 meshing with it to rotate, and the transmission gear ring 125 can drive the various fixed gears 124 meshing with it on the outside to rotate, and the fixed gear 124 can drive the nozzle 118 to rotate as a whole, so that the nozzle 118 can be rotated to change the direction of the nozzle 120, so as to adjust the baking position of the flame beam, and realize continuous baking of different positions inside the ladle body 101, which is beneficial to the actual baking work.

[0040] Working principle:

[0041] In actual use, people can use the ladle baking heater 1 to bake the ladle body 101. When in use, people can connect the ladle baking heater 1 to the gas source through the connecting port 108 to realize the supply of coal gas and oxygen. After the connection is completed, the coal gas and oxygen will be transmitted to the nozzle 118 and the insulation pipe 129 respectively through the conduit inside the cross frame 105 and sprayed out. Then, the coal gas can be ignited through the igniter at the end of the nozzle 120 to realize the baking of the inside of the ladle body 101. When the coal gas burns, oxygen will be sprayed out through the nozzle 130 to assist the flame. When baking the ladle body 101, people can adjust the relative position of the baking part and the ladle body 101 through the hydraulic rod 109. The operation of the rod 109 can drive the horizontal frame 105 to deflect, so that the baking part at the end of the horizontal frame 105 can be synchronously deflected, so that the flame end of the baking part can directly bake the inner side wall and the bottom of the ladle body 101. At the same time, the operation of the motor inside the vertical frame 102 can drive the threaded rod 114 to rotate, and the threaded rod 114 can drive the top sleeve 113 to rotate, and the top sleeve 113 can drive the slide 107 and the horizontal frame 105 to adjust the overall height, which is beneficial to the actual baking of the ladle body 101. At the same time, the nozzles 120 at the end of the nozzle pipe 118 are all set with a distorted angle, and the nozzles of the nozzles 120 are all facing one point, so that the flame beams ejected by each nozzle 120 can be The flame energy is concentrated effectively to achieve the gathering of flame energy, thereby effectively accelerating the baking speed of the ladle body 101 and avoiding the influence of the flame beam dispersion on the baking effect. When baking the ladle body 101, people can open and close the electromagnetic valve in the lower connecting hole of the oxygen supply pipe 121, so that oxygen can be discharged through the guide hole 133. When the oxygen is discharged, it will impact the impeller 134, thereby driving the impeller 134 to rotate, so that the driving gear 136 coaxial with the impeller 134 can rotate synchronously, and the driving gear 136 can drive the transmission gear ring 125 meshing with it to rotate, and the transmission gear ring 125 can drive the various fixed gears 124 meshing with it on the outside to rotate, and the fixed gear 124 can drive the nozzle 118 The whole is rotated so that the nozzle 118 can be rotated to change the direction of the nozzle 120, so as to adjust the baking position of the flame beam and realize continuous baking of different positions inside the ladle body 101, which is beneficial to the actual baking work. In the process of adjusting the flame baking direction and range, when the direction of the nozzle 120 is adjusted, people can open and close the solenoid valve in the lower connecting hole of the oxygen supply pipe 121 according to the demand, so that part of the oxygen inside the oxygen supply pipe 121 can be discharged to the upper part of the limiting cavity 132 through the connecting hole, so that the upper pressure in the limiting cavity 132 is increased, so that the limiting ring 138 is forced downward, and at this time, the oxygen supply pipe 121 can be extended under the drive of the limiting ring 138, so that the oxygen supply pipe 121 and the insulation pipe 129 can be extended downward.When the oxygen is ejected through the nozzle 130, it can further approach the nozzle 120 to supplement the oxygen around the flame. At the same time, it can effectively increase the injection range of oxygen, so that the flame coverage range can be effectively increased, which is conducive to achieving uniform baking of the ladle body 101 and avoiding the situation that the flame beam is short and cannot fully bake the bottom of the ladle body 101. In the process of adjusting the oxygen supply range, when the fixed seat 127 moves, it will drive each fixed ring 119 to deflect through the support rod 128, so that the nozzle 118 can be deflected synchronously, driving the nozzle 118 and the nozzle 120 to disperse, so that the flame beam ejected from the nozzle 120 can be separated, so as to achieve further adjustment of the baking range, which is conducive to the regional temperature increase and heat preservation work in the middle and late stages of baking, and can achieve synchronous baking of a large range of areas in the ladle body 101, which is conducive to completing the temperature maintenance and average work of each area in the ladle body 101, and avoiding local overheating or overcooling.

[0042] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. An oxygen-enriched combustion type ladle roaster, comprising a ladle roasting heater (1), characterized in that: The ladle baking heater (1) comprises a vertical frame (102), a horizontal frame (105) is arranged on the inner side of the top of the vertical frame (102), one end of the horizontal frame (105) is fixedly connected to the fixed frame (104), and the other end of the horizontal frame (105) is provided with a plurality of connection ports (108), the connection ports (108) are used to connect to a gas source, the connection ports (108) are all connected to conduits, and the conduits are all installed inside the horizontal frame (105), and the ends of the conduits away from the connection ports (108) are respectively fixedly connected to a gas supply pipe (117) and an oxygen supply pipe (121), and the gas supply pipe (117) and the oxygen supply pipe (121) both pass through the end of the fixed frame (104), and the bottom of the fixed frame (104) is fixedly connected to an end cover (108). 3), the end of the air supply pipe (117) away from the guide tube is fixedly connected to the annular chamber (122), the annular chamber (122) is installed inside the end cover (103), the outer periphery of the annular chamber (122) is fixedly connected to the connecting pipes (116) which are evenly distributed, the end of the connecting pipe (116) away from the connecting pipe (116) is installed with a rotating interface (126), the bottom of the rotating interface (126) is rotatably connected to the nozzle (118), the end of the nozzle (118) away from the rotating interface (126) is installed with a nozzle (120), the top of the oxygen supply pipe (121) passes through the annular chamber (122) and the top of the fixed chamber (115), the fixed chamber (115) is arranged at the lower part of the annular chamber (122), and the fixed chamber (115) is provided at the lower part of the annular chamber (122). 15) is installed at the middle part of the bottom end of the end cover (103), a limit cavity (132) is provided in the middle part of the fixed chamber (115), a limit ring (138) is slidably connected inside the limit cavity (132), the limit ring (138) is fixedly connected to the middle part of the outer periphery of the oxygen supply pipe (121), a return spring (131) is provided at the lower part of the limit ring (138), the return spring (131) is installed at the lower part of the limit cavity (132), the return spring (131) is sleeved at the lower part of the outer periphery of the oxygen supply pipe (121), two connection holes are provided at the lower part of the outer periphery of the oxygen supply pipe (121), solenoid valves are installed inside the connection holes, the connection holes are respectively provided at the upper and lower parts of the limit ring (138), and the upper part of the outer periphery of the fixed chamber (115) is provided with a return spring (131). Exhaust holes (139) are provided on both sides, and valve bodies (137) are installed inside the exhaust holes (139). A plurality of mounting frames (123) are fixedly connected to the upper part of the outer periphery of the fixed chamber (115), and a portion of the mounting frames (123) away from the fixed chamber (115) is rotatably connected to the inner side of each mounting frame (123) with a rotating interface (126). A guide hole (133) is connected to one side of the lower part of the limiting chamber (132), and the guide hole (133) is arranged on one side of the lower part of the fixed chamber (115). An impeller (134) is arranged on one side of the guide hole (133) away from the limiting chamber (132), and a rotating shaft (135) is fixedly connected to the middle part of the bottom end of the impeller (134), and a driving gear (136) is fixedly connected to the bottom of the rotating shaft (135).The impeller (134), the rotating shaft (135) and the driving gear (136) are all arranged on one side of the lower part of the fixed chamber (115); the impeller (134), the rotating shaft (135) and the driving gear (136) are all rotatably connected to the fixed chamber (115); one side of the driving gear (136) is meshedly connected to a transmission gear ring (125); the transmission gear ring (125) is rotatably connected to the lower part of the outer periphery of the fixed chamber (115); the outer periphery of the transmission gear ring (125) is meshedly connected to a plurality of fixed gears (124); the fixed gears (124) are all fixedly connected to the upper part of the outer periphery of the nozzle (118).

2. The oxygen-enriched combustion ladle roaster according to claim 1, characterized in that: A fixed shaft (112) is rotatably connected to one side of the middle of the horizontal frame (105), and sliding frames (107) are installed at both ends of the fixed shaft (112). The sliding frames (107) are slidably connected to the front and rear sides of the upper part of the vertical frame (102).

3. The oxygen-enriched combustion ladle roaster according to claim 2, characterized in that: The bottom of the slide (107) is fixedly connected to a top extension sleeve (113), the inner side of the bottom of the top extension sleeve (113) is threadedly connected to a threaded rod (114), the bottom of the threaded rod (114) is equipped with a motor, and the motor is installed inside the stand (102).

4. The oxygen-enriched combustion ladle roaster according to claim 3, characterized in that: A hydraulic rod (109) is rotatably connected to the middle of one side of the vertical frame (102); one end of the hydraulic rod (109) away from the vertical frame (102) is rotatably connected to one side of the bottom end of the horizontal frame (105); and guard plate frames (110) are provided on the front and rear sides of the hydraulic rod (109); and the guard plate frames (110) are fixedly connected to the vertical frame (102).

5. The oxygen-enriched combustion ladle roaster according to claim 1, characterized in that: A ladle body (101) is arranged at the lower side of the end cover (103), and evenly distributed through holes (106) are opened on the outer circumference of the end cover (103). The through holes (106) are all connected to corresponding through ports (111), and the through ports (111) are all opened at the bottom of the end cover (103).

6. The oxygen-enriched combustion ladle roaster according to claim 1, characterized in that: The ends of the oxygen supply pipes (121) away from the conduit are fixedly connected to the insulation pipes (129), the ends of the insulation pipes (129) are provided with nozzles (130), and the nozzles (130) are arranged between the plurality of nozzles (118).

7. The oxygen-enriched combustion ladle roaster according to claim 6, characterized in that: A fixing seat (127) is installed on the upper part of the outer periphery of the heat insulation tube (129), and a plurality of support rods (128) are rotatably connected to the outer periphery of the fixing seat (127). One end of the support rod (128) away from the fixing seat (127) is rotatably connected to a fixing ring (119), and the fixing ring (119) is installed on the lower part of the outer periphery of the nozzle (118), and the nozzle (118) is rotatably connected to the fixing ring (119).

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