KR stirring head with locking function at end part

Abstract

The invention discloses a KR stirring head with a locking function at the end, and relates to the technical field of KR stirring heads. The KR stirring head with the locking function at the end comprises a stirring connector, the stirring connector comprises a flange plate, a locking sleeve is fixedly connected to the bottom of the flange plate, a stirring core rod is inserted into the locking sleeve, the surface of the stirring core rod is sleeved with a refractory layer, a heat dissipation sleeve is fixedly connected to the top of the refractory layer, and the heat dissipation sleeve is fixedly connected to the bottom of the flange plate. The heat dissipation sleeve comprises a sleeve seat and a heat dissipation mesh enclosure, the bottom of the sleeve seat is fixedly connected with the top of the fireproof layer, and the bottom of the heat dissipation mesh enclosure is fixedly connected with the top of the sleeve seat. According to the KR stirring head with the locking function at the end, by arranging the friction sleeve, the blade frame gas guide pipe and the deformation layer between the fireproof layer and the core rod, the friction force is improved by utilizing the heating expansion of the friction sleeve, the probability of loosening and falling is reduced, the adverse effect of the thermal shock phenomenon is reduced, and the reliability of the stirring head is improved.

Description

Technical Field

[0001] The invention relates to the technical field of KR stirring heads, and in particular to a KR stirring head with a locking function arranged at an end thereof. Background Art

[0002] The KR mechanical stirring method is to immerse the cross-shaped stirring head, which is cast with refractory materials and baked, into the molten iron pool to a certain depth. The weighed desulfurizer is added to the surface of the molten iron through the vortex generated by its rotation. The desulfurizer is then drawn into the molten iron by the vortex to make the calcium oxide-based desulfurization powder fully contact and react with the molten iron to achieve the purpose of desulfurization. Citing the utility model patent with Chinese publication number CN219772167U, the utility model discloses a KR stirring head with a locking function at the end, comprising an iron component, a penetration component and a locking component, wherein the top end of the iron component is provided with a locking component, and the bottom end of the iron component is provided with a penetration component, the locking component comprises a cylindrical shell, a left half plate, a right half plate, a gasket and a knob, and the outer surface of the cylindrical shell is provided with a knob, the bottom end of the cylindrical shell is provided with a left half plate, and one end of the left half plate is provided with a right half plate; During the immersion of the utility model in molten iron, thermal shock occurs due to the rapid change in the external temperature of the stirring head. The thermal shock phenomenon causes greater thermal stress to be generated inside the stirring head. At the same time, the vibration caused by the thermal stress change will cause the locking mechanism and the penetration mechanism to loosen and wear, affecting production efficiency and production safety. Reducing the impact of thermal shock on the stirring head is the key to reducing the probability of adverse phenomena. Summary of the invention

[0003] In view of the deficiencies in the prior art, the present invention provides a KR stirring head with a locking function at the end to solve the problems raised in the above background technology.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: a KR stirring head with a locking function at the end, comprising a stirring joint, the stirring joint comprising a flange, a locking sleeve fixedly connected to the bottom of the flange, a stirring core rod inserted inside the locking sleeve, a refractory layer sleeved on the surface of the stirring core rod, a heat dissipation sleeve fixedly connected to the top of the refractory layer, the heat dissipation sleeve comprising a sleeve seat and a heat dissipation mesh cover, the bottom of the sleeve seat is fixedly connected to the top of the refractory layer, the number of the sleeve seats is two and the other sleeve seat is fixedly connected to the bottom of the locking sleeve, the bottom of the heat dissipation mesh cover is fixedly connected to the top of the sleeve seat, providing an overall technical solution of the present invention.

[0005] Preferably, the top of the flange is connected with a circular through hole and the central axis of the circular through hole coincides with the axis of the flange, the bottom of the flange is connected with a circular through hole, the number of the circular through holes is eight and they are evenly distributed about the central axis of the flange, the back of the inner wall of the locking sleeve is fixedly connected with a rectangular groove, the locking sleeve is inserted with a locking key through the rectangular groove of the inner wall, a joint rib plate is fixedly connected to the surface of one side of the locking sleeve, the top of the joint rib plate is fixedly connected to the bottom of the flange, the number of the joint rib plates is eight and they are evenly distributed about the central axis of the locking sleeve, a lifting ear is fixedly connected to one side of the flange, the front of the lifting ear is connected with a circular through hole, the number of the lifting ears is four and they are evenly distributed about the central axis of the flange, the stirring joint is made of alloy and is annealed, providing a supplementary technical solution for the stirring joint of the present invention.

[0006] Preferably, the stirring core rod includes a friction sleeve, the material of the friction sleeve is alloy, the inner surface of the friction sleeve is roughly polished, one side surface of the friction sleeve is fixedly connected to the inner wall of the circular through hole at the top of the flange, an air duct is sleeved inside the friction sleeve, and one side surface of the air duct is sleeved with a stirring skeleton, providing an overall technical solution for the stirring core rod of the present invention.

[0007] Preferably, the air guide pipe is a hollow structure, comprising a main air pipe, the top of the main air pipe being fixedly connected with a chamfer, and one side surface of the main air pipe being connected with a branch pipe, and the number of the branch pipes is six, with two in a group, for a total of three groups, and each group of branch pipes is evenly arranged on one side surface of the main air pipe, and the three groups are evenly distributed about the central axis of the branch pipes, providing an overall technical solution for the air guide pipe mechanism of the stirring core rod of the present invention.

[0008] Preferably, the stirring skeleton includes a hollow rod frame, the interior of the hollow rod frame is sleeved with the surface of the main air pipe, the back of the hollow rod frame is fixedly connected with a rectangular groove, the hollow rod frame is clamped with the front of the locking key through the rectangular groove, the top of the hollow rod frame is fixedly connected with a circular blind hole, the bottom of the circular blind hole of the hollow rod frame does not contact the bottom of the main air pipe, and the surface of the hollow rod frame is fixedly connected with a blade frame, providing an overall technical solution for the stirring skeleton mechanism of the stirring core rod of the present invention.

[0009] Preferably, the cross-section of one side of the blade rack is a right-angled trapezoid, and the length of the bottom of the blade rack is smaller than the length of the top thereof; a circular through hole is fixedly connected inside the blade rack, and the number of the circular through holes is two; the blade rack is fixedly connected to the branch pipe through the internal circular through hole; a reinforcement root block is fixedly connected to the top of the blade rack, and the reinforcement root block is a cylinder, and the number of the reinforcement root blocks is four and they are evenly arranged on the top of the blade rack; a deformation layer is fixedly connected to the surface of the blade rack, and the deformation layer is made of stainless steel, and the inside of the deformation layer is fixedly connected to the surface of the reinforcement root block; the number of the blade racks is three and they are evenly distributed about the central axis of the hollow rod rack, thereby providing an overall technical solution for the blade rack mechanism of the stirring skeleton of the present invention.

[0010] Preferably, the refractory layer is made of refractory casting material, and the refractory layer includes a core rod layer, the top of the core rod layer is connected with a circular through hole, the core rod layer is fixedly connected to the surface of the hollow rod frame through the internal circular through hole, the bottom of the core rod layer is fixedly connected to a blade layer, the interior of the blade layer is a hollow structure, and the inner wall surface of the blade layer is fixedly connected to the outer surface of the deformation layer, providing an overall technical solution for the refractory layer of the present invention.

[0011] Preferably, the heat dissipation sleeve is made of alloy, the top of the core rod layer is fixedly connected to the bottom of the sleeve seat, the heat dissipation mesh cover includes a mesh cover inner layer, the interior of the mesh cover inner layer is a hollow structure, the surface of the mesh cover inner layer is connected with circular through holes, the internal surface of the mesh cover inner layer is socketed with the surface of the main air pipe, the top of the sleeve seat is fixedly connected with a mesh cover outer layer, the interior of the mesh cover outer layer is a hollow structure, the surface of the mesh cover outer layer is connected with circular through holes, the internal diameter of the mesh cover outer layer is larger than the external diameter of the mesh cover inner layer, providing a supplementary technical solution to the heat dissipation sleeve mechanism of the present invention.

[0012] The present invention provides a KR stirring head with a locking function at the end. It has the following beneficial effects: 1. A KR stirring head with a locking function at the end is provided with a stirring joint that is locked by a locking key. The friction fixation and the locking key are blocked by the card connection, which reduces the probability of the stirring head slipping and causing the stirring effect to decrease. At the same time, when the stirring head is used for stirring, the heat transferred from the stirring tank to the locking key causes the locking key to expand to a certain extent due to the heat, thereby increasing the friction between the locking key and the joint and the stirring head body, further reducing the probability of loosening and falling, and improving the reliability of the stirring head.

[0013] 2. This KR stirring head with a locking function at the end has a friction sleeve that is sleeved on the outside of the air duct. The friction sleeve is in contact with the air duct and the flange, which increases the fixing area and heat conduction area of ​​the air duct. When the stirring work is in progress, the heat transferred by the stirring head is used to expand the friction sleeve to a certain extent, further increasing the friction between the friction sleeve and the air duct and the flange, thereby improving the fixing force of the stirring head, thereby reducing the adverse effects of thermal shock and improving the reliability of the stirring head.

[0014] 3. This KR mixing head with a locking function at the end is connected to the blade frame through an air duct, and the heat inside the blade frame is transferred out of the mixing head by heating the air in the air duct. After the hot air in the air duct is basically discharged, the pressure difference is used to inhale the external cold air to continue to dissipate heat, thereby improving the heat dissipation of the blade frame. At the same time, the blades with a right-angled trapezoidal cross-section optimize the blade stress surface, reduce the adverse effects of thermal shock on the mixing head blades, increase the service life of the mixing head, and thus improve the reliability of the mixing head.

[0015] 4. This kind of KR stirring head with a locking function at the end has a deformation layer between the refractory layer and the core rod. When the refractory layer and the core rod are affected by the thermal stress of the thermal shock phenomenon, the deformation effect of the deformation layer prevents the direct extrusion of the refractory layer and the core rod to absorb the thermal stress and part of the vibration, thereby reducing the probability of the refractory layer being ruptured due to the direct extrusion between the refractory layer and the core rod, thereby reducing the adverse effects of the thermal shock phenomenon and increasing the service life of the stirring head.

[0016] 5. The KR mixing head with a locking function at the end is provided with a heat dissipation sleeve and a heat dissipation mesh cover to increase the heat dissipation area of ​​the hollow rod frame. At the same time, the sleeve seat is used to assist in increasing the heat dissipation area of ​​the mixing joint and the refractory layer, thereby reducing the probability of a decrease in the mixing performance of the mixing head as a whole due to overheating and improving the reliability of the mixing head. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a cross-sectional view of the overall structure of the stirring joint of the present invention; Figure 3 This is a schematic diagram of the positional relationship between the stirring joint and the stirring core rod of the present invention; Figure 4 This is a schematic diagram of the overall structure of the airway tube of the present invention; Figure 5 This is a cross-sectional view of the positional relationship between the stirring core rod and the refractory layer of the present invention; Figure 6 This is a schematic diagram of the external structure of the stirring core rod and the refractory layer of the present invention; Figure 7This is a schematic diagram of the positional relationship between the heat dissipation sleeve and the stirring core rod of the present invention; Figure 8 This is a cross-sectional view of the positional relationship between the heat dissipation sleeve and the stirring core rod of the present invention.

[0018] In the figure: 1. stirring joint; 11. flange; 12. locking sleeve; 13. joint rib plate; 14. lifting ear; 15. locking key; 2. stirring core rod; 21. friction sleeve; 22. air guide pipe; 221. main air pipe; 222. branch pipe; 23. stirring skeleton; 231. hollow rod frame; 232. blade frame; 233. reinforcement root block; 234. deformation layer; 3. refractory layer; 31. core rod layer; 32. blade layer; 4. heat dissipation sleeve; 41. sleeve seat; 42. heat dissipation mesh cover; 421. mesh cover inner layer; 422. mesh cover outer layer. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0020] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0021] Example 1: Please refer to Figure 1-3The present invention provides a technical solution: a KR stirring head with a locking function at the end, comprising a stirring joint 1, the stirring joint 1 comprising a flange 11, the stirring joint 1 is connected to an external driving device through the flange 11, a locking sleeve 12 is fixedly connected to the bottom of the flange 11, a circular through hole is connected to the top of the flange 11, and the central axis of the circular through hole coincides with the axis of the flange 11, a circular through hole is connected to the bottom of the flange 11, the number of the circular through holes is eight and is evenly distributed about the central axis of the flange 11, a rectangular groove is fixedly connected to the back of the inner wall of the locking sleeve 12, a locking key 15 is inserted into the rectangular groove of the inner wall of the locking sleeve 12, a joint rib plate 13 is fixedly connected to the surface of one side of the locking sleeve 12, the joint rib plate 13 is used to reinforce the locking sleeve 12, and the joint rib plate 1 3 The top is fixedly connected to the bottom of the flange 11, the number of the joint ribs 13 is eight and they are evenly distributed about the central axis of the locking sleeve 12, one side of the flange 11 is fixedly connected with a lifting ear 14, the front of the lifting ear 14 is connected with a circular through hole, the number of the lifting ears 14 is four and they are evenly distributed about the central axis of the flange 11, the stirring joint 1 is made of alloy and the stirring joint 1 is annealed, and the probability of the stirring head slipping and causing the stirring effect to decrease is reduced by fixing with friction and blocking with the locking key 15, and at the same time, when the stirring head is used for stirring, the heat transferred from the stirring tank to the locking key 15 causes the locking key 15 to expand to a certain extent due to the heat, thereby increasing the friction between the locking key 15 and the joint and the stirring head body, and further reducing the probability of loosening and falling; A stirring core rod 2 is inserted into the locking sleeve 12 , a refractory layer 3 is sleeved on the surface of the stirring core rod 2 , and a heat dissipation sleeve 4 is fixedly connected to the top of the refractory layer 3 .

[0022] When in use, first insert the friction sleeve 21 into the inner surface of the stirring core rod 2, then complete the insertion of the locking sleeve 12 and the stirring core rod 2, and insert the locking key 15 into the rectangular groove of the locking sleeve 12 until the locking key 15 is completely in contact with the rectangular groove of the locking sleeve 12 and the rectangular groove of the stirring core rod 2 and is tightened. After the tightening is completed, the flange 11 of the stirring joint 1 on the top of the stirring head is installed to the driving device of the stirrer and fixed with bolts. After the fixing is completed, before entering the stirring tank for stirring, it is usually necessary to bake the surface of the refractory layer 3. During the process of baking the surface of the refractory layer 3, the temperature of the entire stirring head continues to rise. Because the locking key 15 is made of metal, after the temperature rises, the volume of the locking key 15 increases. At the same time, the volume of the locking sleeve 12 and the stirring core rod 2 also increases under the influence of high temperature. The pressure between the locking key 15 and the locking sleeve 12, and between the locking key 15 and the stirring core rod 2 increases. Under the action of high temperature, the adhesion of the metal surface increases, thereby further increasing the pressure between the locking key 15 and the locking sleeve 12, and between the locking key 15 and the stirring core rod 2, and finally achieving the improvement of the fixing strength of the stirring joint 1 and the stirring core rod 2. After the baking is completed, the stirring head is inserted into the molten iron. After the stirring head is inserted into the molten iron, the driving device is started. The driving device rotates to drive the stirring head to rotate. After the blades of the stirring head drive the molten iron to form a vortex, the prepared desulfurizer is added through the feeder. Continue stirring to allow the molten iron and the desulfurizer to be fully mixed. After the mixing is completed, the driving device stops rotating, thereby driving the stirring head to stop rotating. After the stirring head is extended, subsequent cooling and cleaning are carried out to complete the stirring.

[0023] Example 2: Please refer to Figure 1-6 , based on the first embodiment, the present invention provides a technical solution: the stirring core rod 2 includes a friction sleeve 21, the material of the friction sleeve 21 is alloy, the inner surface of the friction sleeve 21 is roughly polished, one side surface of the friction sleeve 21 is fixedly connected to the inner wall of the circular through hole at the top of the flange 11, and an air guide pipe 22 is sleeved inside the friction sleeve 21. The air guide pipe 22 is a hollow structure, and the air guide pipe 22 includes a main air pipe 221, and the top of the main air pipe 221 is fixedly connected with a chamfer, and one side surface of the main air pipe 221 is connected with a branch pipe 222, and the number of the branch pipes 222 is six, each two in a group, a total of three groups, each group of branch pipes 222 is evenly arranged on the one side surface of the main air pipe 221, and the three groups are evenly distributed about the central axis of the branch pipe 222; A stirring skeleton 23 is sleeved on one side surface of the air guide tube 22, and the stirring skeleton 23 includes a hollow rod frame 231. The interior of the hollow rod frame 231 is sleeved on the surface of the main air pipe 221. The back of the hollow rod frame 231 is fixedly connected with a rectangular groove. The hollow rod frame 231 is clamped with the front of the locking key 15 through the rectangular groove. A circular blind hole is fixedly connected to the top of the hollow rod frame 231. The bottom of the circular blind hole of the hollow rod frame 231 does not contact the bottom of the main air pipe 221. A blade frame 232 is fixedly connected to the surface of the hollow rod frame 231. The cross-section of one side of the blade frame 232 is a right-angled trapezoid, and the bottom length of the blade frame 232 is less than the top length. A circular through hole is fixedly connected inside the blade frame 232. The number of circular through holes is two. The blade frame 232 The blade frame 232 is fixedly connected to the branch pipe 222 through the internal circular through hole. The top of the blade frame 232 is fixedly connected with a reinforcement root block 233. The reinforcement root block 233 is a cylinder. There are four reinforcement root blocks 233 and they are evenly arranged on the top of the blade frame 232. The surface of the blade frame 232 is fixedly connected with a deformation layer 234. The deformation layer 234 is made of stainless steel. The inside of the deformation layer 234 is fixedly connected to the surface of the reinforcement root block 233. The reinforcement root block 233 increases the contact area with the deformation layer 234, thereby increasing the contact area between the stirring core rod 2 and the refractory layer 3, and improving the stability of the combination of the refractory layer 3 and the stirring core rod 2. There are three blade frames 232 and they are evenly distributed about the central axis of the hollow rod frame 231. The refractory layer 3 is made of refractory casting material, and the refractory layer 3 includes a core rod layer 31. The top of the core rod layer 31 is connected with a circular through hole. The core rod layer 31 is fixedly connected to the surface of the hollow rod frame 231 through the internal circular through hole. The bottom of the core rod layer 31 is fixedly connected to a blade layer 32. The interior of the blade layer 32 is a hollow structure, and the inner wall surface of the blade layer 32 is fixedly connected to the outer surface of the deformation layer 234.

[0024] During use, after the stirring head is inserted into the molten iron, there is still a large temperature difference between the high-temperature molten iron and the baked stirring head, which causes thermal shock. The thermal stress on the surfaces of the stirring core rod 2 and the refractory layer 3 continues to increase, which causes the surfaces of the stirring core rod 2 and the refractory layer 3 to deform. When the outer surface of the stirring core rod 2 is deformed, the outer surface of the stirring core rod 2 squeezes the deformation layer 234. The deformation layer 234 gradually undergoes elastic deformation under the squeezing of the stirring core rod 2, and then gradually absorbs the thermal stress. At the same time, the inner surface of the refractory layer 3 is also deformed under the action of the thermal stress. The inner surface of the refractory layer 3 squeezes the outer surface of the stirring core rod 2. The stirring core rod 2 gradually undergoes elastic deformation to absorb part of the thermal stress, thereby reducing the probability of the refractory layer 3 being ruptured due to excessive deformation. During the stirring process of molten iron, the heat inside the blade rack 232 is conducted to the air inside the branch pipe 222 through the branch pipe 222, and the heat is gradually transferred in the air inside the branch pipe 222. The air inside the branch pipe 222 gradually heats up, and the air pressure inside the air pipe 22 is greater than the external air pressure. The hot air inside the air pipe 22 begins to flow to the outside, thereby causing the air pressure inside the air pipe 22 to gradually decrease. During the flow process, part of the heat is transferred to the hollow rod rack 231 through the main air pipe 221 and finally to the outside air, and part of the heat is transferred to the locking key 15 through the friction sleeve 21. The remaining heat is dissipated to the nearby cold air with the exhausted hot air. When the air pressure inside the air pipe 22 is lower than the external air pressure, the external cold air enters the air pipe 22 through the circular blind hole at the top of the main air pipe 221, and then gradually fills into the main air pipe 221, continuing to absorb the heat transferred from the molten iron to the blade rack 232.

[0025] Example 3: Please refer to Figure 1-8 On the basis of the first and second embodiments, the present invention provides a technical solution: the heat dissipation sleeve 4 includes a sleeve seat 41 and a heat dissipation mesh cover 42. The heat dissipation sleeve 4 is made of alloy. The top of the core rod layer 31 is fixedly connected to the bottom of the sleeve seat 41, and the bottom of the sleeve seat 41 is fixedly connected to the top of the fire-resistant layer 3. There are two sleeve seats 41 and another sleeve seat 41 is fixedly connected to the bottom of the locking sleeve 12. The bottom of the heat dissipation mesh cover 42 is fixedly connected to the top of the sleeve seat 41. The heat dissipation mesh cover 42 includes a mesh cover inner layer 421. The mesh cover inner layer 421 has a hollow structure. The surface of the mesh cover inner layer 421 is connected with a circular through hole. The inner surface of the mesh cover inner layer 421 is sleeved with the surface of the main air pipe 221. The top of the sleeve seat 41 is fixedly connected with a mesh cover outer layer 422. The mesh cover outer layer 422 has a hollow structure. The surface of the mesh cover outer layer 422 is connected with a circular through hole. The inner diameter of the mesh cover outer layer 422 is larger than the outer diameter of the mesh cover inner layer 421.

[0026] When in use, during the stirring process, part of the heat transferred to the stirring joint 1, the stirring core rod 2, and the refractory layer 3 is transferred to the outer layer 422 of the mesh cover through the sleeve 41. The outer layer 422 of the mesh cover gradually heats up after absorbing the heat, and heats the air in the interlayer between the inner layer 421 of the mesh cover and the outer layer 422 of the mesh cover. The air in the interlayer gradually heats up after being heated, and is discharged outwardly through the through holes on the surfaces of the inner layer 421 of the mesh cover and the outer layer 422 of the mesh cover, thereby discharging part of the heat, preventing the stirring joint 1, the stirring core rod 2, and the refractory layer 3 from overheating and affecting the physical properties of the entire stirring head. After the hot air in the interlayer is discharged, the air pressure in the interlayer is lower than the air pressure outside the interlayer, and the external cold air enters the heat dissipation mesh cover 42 through the through holes of the heat dissipation mesh cover 42 to continue absorbing heat, thereby completing heat exchange and discharge.

[0027] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A KR stirring head with a locking function at the end, comprising a stirring joint (1), characterized in that: The stirring joint (1) comprises a flange (11), a locking sleeve (12) is fixedly connected to the bottom of the flange (11), a stirring core rod (2) is inserted into the locking sleeve (12), a refractory layer (3) is sleeved on the surface of the stirring core rod (2), and a heat dissipation sleeve (4) is fixedly connected to the top of the refractory layer (3); The heat dissipation sleeve (4) comprises: A sleeve (41), the bottom of the sleeve (41) being fixedly connected to the top of the fire-resistant layer (3), the number of the sleeves (41) being two and another sleeve (41) being fixedly connected to the bottom of the locking sleeve (12); A heat dissipation mesh cover (42), wherein the bottom of the heat dissipation mesh cover (42) is fixedly connected to the top of the sleeve (41).

2. A KR stirring head with a locking function at the end according to claim 1, characterized in that: The top of the flange (11) is connected to a circular through hole, and the central axis of the circular through hole coincides with the axis of the flange (11); the bottom of the flange (11) is connected to a circular through hole, and the number of the circular through holes is eight and they are evenly distributed about the central axis of the flange (11); the back of the inner wall of the locking sleeve (12) is fixedly connected to a rectangular groove, and the locking sleeve (12) is connected to a locking key (15) through the rectangular groove of the inner wall; and a joint rib plate (13) is fixedly connected to a surface of one side of the locking sleeve (12). The top of the joint rib plate (13) is fixedly connected to the bottom of the flange (11); the number of the joint rib plates (13) is eight and they are evenly distributed about the central axis of the locking sleeve (12); a lifting ear (14) is fixedly connected to one side of the flange (11); the front of the lifting ear (14) is connected to a circular through hole; the number of the lifting ears (14) is four and they are evenly distributed about the central axis of the flange (11); the stirring joint (1) is made of alloy and the stirring joint (1) is annealed.

3. A KR stirring head with a locking function at the end according to claim 2, characterized in that: The stirring core rod (2) comprises a friction sleeve (21), one side surface of the friction sleeve (21) is fixedly connected to the inner wall of the circular through hole at the top of the flange (11), an air guide tube (22) is sleeved inside the friction sleeve (21), and a stirring skeleton (23) is sleeved on one side surface of the air guide tube (22).

4. A KR stirring head with a locking function at the end according to claim 3, characterized in that: The air guide pipe (22) is a hollow structure, comprising a main air pipe (221), the top of the main air pipe (221) being fixedly connected with a chamfer, a side surface of the main air pipe (221) being connected with a branch pipe (222), the number of the branch pipes (222) being six, two in a group, for a total of three groups, each group of branch pipes (222) being evenly arranged on a side surface of the main air pipe (221), and the three groups being evenly distributed about the central axis of the branch pipes (222).

5. A KR stirring head with a locking function at the end according to claim 4, characterized in that: The stirring skeleton (23) comprises a hollow rod frame (231), the interior of the hollow rod frame (231) is sleeved with the surface of the main air pipe (221), the back of the hollow rod frame (231) is fixedly connected with a rectangular groove, the hollow rod frame (231) is clamped with the front of the locking key (15) through the rectangular groove, the top of the hollow rod frame (231) is fixedly connected with a circular blind hole, the bottom of the circular blind hole of the hollow rod frame (231) does not contact the bottom of the main air pipe (221), and the surface of the hollow rod frame (231) is fixedly connected with a blade frame (232).

6. A KR stirring head with a locking function at the end according to claim 5, characterized in that: The cross section of one side of the blade frame (232) is a right-angled trapezoid, and the length of the bottom of the blade frame (232) is shorter than the length of the top. A circular through hole is fixedly connected inside the blade frame (232), and the number of the circular through holes is two. The blade frame (232) is fixedly connected to the branch pipe (222) through the circular through hole inside. A reinforcement root block (233) is fixedly connected to the top of the blade frame (232), and the reinforcement root block (233) is a cylinder. The number of the reinforcement root blocks (233) is four and is evenly arranged on the top of the blade frame (232). A deformation layer (234) is fixedly connected to the surface of the blade frame (232), and the interior of the deformation layer (234) is fixedly connected to the surface of the reinforcement root block (233). The number of the blade frames (232) is three and is evenly distributed about the central axis of the hollow rod frame (231).

7. A KR stirring head with a locking function at the end according to claim 6, characterized in that: The refractory layer (3) is made of a refractory casting material, and comprises a core rod layer (31). The top of the core rod layer (31) is connected to a circular through hole. The core rod layer (31) is fixedly connected to the surface of a hollow rod frame (231) through the circular through hole inside. The bottom of the core rod layer (31) is fixedly connected to a blade layer (32). The blade layer (32) has a hollow structure inside. The inner wall surface of the blade layer (32) is fixedly connected to the outer surface of the deformation layer (234).

8. The KR stirring head with a locking function at the end according to claim 7, characterized in that: The heat dissipation sleeve (4) is made of alloy, the top of the core rod layer (31) is fixedly connected to the bottom of the sleeve seat (41), the heat dissipation mesh cover (42) comprises a mesh cover inner layer (421), the mesh cover inner layer (421) is hollow in structure, the surface of the mesh cover inner layer (421) is connected to a circular through hole, the inner surface of the mesh cover inner layer (421) is sleeved with the surface of the main air pipe (221), the top of the sleeve seat (41) is fixedly connected to a mesh cover outer layer (422), the mesh cover outer layer (422) is hollow in structure, the surface of the mesh cover outer layer (422) is connected to a circular through hole, and the inner diameter of the mesh cover outer layer (422) is larger than the outer diameter of the mesh cover inner layer (421).

Images