A liquid slag conveying device for solidification mold heat exchange test

Abstract

The present invention discloses a liquid slag conveying device for solidification mold heat exchange testing. The device comprises a support frame with a support shaft fixedly mounted vertically on its top, the support shaft being rotatably connected to a rotational pitch assembly; the rotational pitch assembly being configured to engage the clearance between an adjustment cylinder and an operating shaft; and a slag scoop assembly fixedly mounted on one end of the operating shaft. The device utilizes a simple, practical, and reliable structure, and through simple and flexible control, removes high-temperature liquid slag from a slag pool and transports it to the solidification mold device of a waste heat recovery system for recovery testing.

Description

Technical Field

[0001] The invention relates to a liquid slag taking device, in particular to a liquid slag conveying device for a solidification mold heat exchange test. Background Art

[0002] High-temperature liquid slag is a byproduct of the metal smelting process. It boasts high production volume, high temperature, and high enthalpy, making it a high-quality waste heat resource. The effective recovery and utilization of slag waste heat is an important topic with significant potential benefits and is currently undergoing in-depth research. Using a solidification mold device to recover slag waste heat is an effective and important method. During operation, the slag is first removed from the slag pool near the smelting equipment, then rapidly transported and injected into a solidification mold, where it cools, lowers its temperature, and completely solidifies. The released heat is then carried away by the medium water for utilization.

[0003] During on-site hot slag waste heat recovery experiments, the solidification mold was placed on the operating platform of the smelting equipment. A slag conveyor system transported the liquid slag from the slag pool to the solidification mold. The experimental setup was small in size and placed next to the existing smelting equipment. The required conveyor system needed to be simple, compact, and flexible. However, existing technologies did not offer a device for transporting and transferring liquid slag that met these requirements. Summary of the Invention

[0004] In order to make up for the deficiencies of the prior art, the present invention provides a liquid slag conveying device for a solidification mold heat exchange test.

[0005] The present invention is achieved through the following technical solutions:

[0006] A liquid slag conveying device for a solidification mold heat exchange test includes a support frame, a vertical support shaft is fixedly installed on the top of the support frame, and the support shaft is rotatably connected to a rotating pitch assembly; the rotating pitch assembly is matched with the rod body of an adjusting cylinder and an operating shaft; a slag scoop assembly is fixedly installed on one end of the operating shaft.

[0007] The rotation and pitch assembly includes a rotation support assembly and a multi-dimensional motion adjustment component that are hinged to each other; the rotation support assembly is rotatably connected to the support shaft, and the multi-dimensional motion adjustment component includes the adjustment cylinder, which is hinged to the rotation support assembly through a pair of symmetrical cylinder support shafts fixedly installed in the middle part of the outer wall.

[0008] The control shaft is located at both ends of the adjustment cylinder and is provided with limiting components.

[0009] The limiting component is a fixed end sleeve with a stepped internal cavity. The small inner diameter end of the fixed end sleeve is fixedly connected to the operating shaft, and the large inner diameter end of the fixed end sleeve is sleeved outside the adjusting cylinder and is gap-fitted with the adjusting cylinder.

[0010] The inner cavity of the adjustment cylinder is dumbbell-shaped, with both ends being first installation cavities with an inner diameter larger than that of the middle body, and a first copper sleeve fixedly installed in the first installation cavity; the operating shaft is located in the first copper and can rotate freely.

[0011] The rotating support assembly includes a horizontal rotating arm kit and a support fork kit that are rotatably connected to each other; the support fork kit includes a bottom support plate and two left and right side support plates that are parallel to each other and have forks vertically installed on the top of the bottom support plate, and the cylindrical support shaft is placed in the fork; the bottom of the bottom support plate is vertically fixed with a rotating arm shaft; the horizontal rotating arm kit includes a rotating arm shaft sleeve and a support shaft sleeve fixed together by a connecting arm, and the axis of the rotating arm shaft sleeve is parallel to the axis of the support shaft sleeve; the rotating arm shaft is rotatably connected to the rotating arm shaft sleeve; the support shaft sleeve is rotatably connected to the support shaft.

[0012] A copper fork bushing is embedded in the fork on the side support plate, and the cylindrical support shaft is hinged to the fork bushing.

[0013] A second copper sleeve is fixedly installed in the arm shaft sleeve; the inner cavity of the support shaft sleeve is dumbbell-shaped, with both ends being second installation cavities with an inner diameter larger than the inner diameter of the middle body, and a third copper sleeve is fixedly installed in the second installation cavity.

[0014] The slag scoop assembly includes a slag scoop curved handle and a slag scoop fixedly mounted together; the free end of the slag scoop curved handle is processed with a plurality of first fixing pin insertion holes; the resistance arm end of the operating shaft is a hollow structure, and is processed with second fixing pin insertion holes corresponding to the number and position of the first fixing pin insertion holes; the free end of the slag scoop curved handle is inserted into the resistance arm end of the operating shaft and fixed by a fixing pin.

[0015] A shaft positioning plate is installed at the hollow end of the resistance arm of the operating shaft; and a crank handle positioning plate matching the shaft positioning plate is installed at the free end of the curved handle of the slag scoop.

[0016] A first positioning line is provided on the shaft positioning plate; and a second positioning line corresponding to the first positioning line is provided on the crank positioning plate.

[0017] The present invention has the following beneficial technical effects:

[0018] 1. The present invention adopts a simple, practical and reliable structure. Through simple and flexible control, the high-temperature liquid slag is taken out from the slag pool and transported to the solidification mold device of the waste heat recovery system for recovery test.

[0019] 2. A lever mechanism with a fulcrum that can move in a horizontal plane is used to enable the slag scoop to achieve flexible multi-dimensional spatial movement.

[0020] 3. A set of lever arms, i.e., an operating shaft, rotates in two directions simultaneously around a fulcrum arranged at the same position, thereby obtaining a composite trajectory of the two motions, which can more easily meet the requirements of slag space transportation.

[0021] 4. The lever arm rotates around its own axis to complete the tilting action of the slag scoop, realizing the functions of catching and dumping the slag.

[0022] 5. The lever arm rotates around its own axis, which allows the slag spoon to swing quickly in the liquid slag for a short time before taking the slag, so that a layer of slag is first hung on the spoon wall and quickly solidifies and adheres to it, protecting the slag spoon from burning.

[0023] 6. Simple operation, can accurately achieve instant control of force and movement direction.

[0024] 7. A copper sleeve is installed between the rotating shaft and the outer sleeve, and a copper bushing is installed in the fork of the support plate. The copper sleeve and the bushing have good lubrication properties, which can reduce the friction between the contact parts and rotate flexibly; the copper sleeve and the bushing have low hardness and soft texture, and can wear out before the main parts in contact, and when the wear reaches a certain extent, only the copper sleeve needs to be replaced, thereby increasing the life of the main parts and reducing costs; the copper sleeve and the bushing also contain wear-resistant components, and they themselves have certain wear resistance, ensuring a reasonable economic life.

[0025] 8. Positioning plates are set at the connection positions of the slag scoop assembly and the joystick. Positioning lines are set on the positioning plates, which can easily achieve accurate positioning of the components and facilitate the smooth installation of connecting parts such as fixing pins for assembly. The positioning plates can increase the strength and rigidity of the component connection area to prevent deformation and damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The present invention will be further described below with reference to the accompanying drawings.

[0027] Attachment Figure 1 This is a working principle diagram of the liquid slag conveying device of the present invention;

[0028] Attachment Figure 2 is an assembly diagram of the liquid slag conveying device of the present invention;

[0029] Attachment Figure 3 is an assembly diagram of the rotary support assembly of the present invention;

[0030] Attachment Figure 4 It is a three-dimensional schematic diagram of the support fork assembly kit of the present invention;

[0031] Attachment Figure 5 is a perspective schematic diagram of the horizontal rotating arm kit of the present invention;

[0032] Attachment Figure 6 It is a structural diagram of the multi-dimensional motion regulating device of the present invention;

[0033] Attachment Figure 7 This is a schematic diagram of the slag scoop assembly and assembly of the present invention;

[0034] Attachment Figure 8 This is a diagram showing the connection between the operating shaft and the multi-dimensional motion adjustment component.

[0035] In the figure, 1- operating handle, 2- operating shaft, 3- first fixing pin, 4- fixed end sleeve, 5- first copper sleeve, 6- multi-dimensional motion adjustment component, 7- second fixing pin, 8- slag scoop assembly, 9- first cotter pin, 10- rotating support assembly, 11- second cotter pin, 12- shaft positioning plate, 13- support fork assembly kit, 14- horizontal rotating arm kit, 15- first bolt kit, 16- upper end cover, 17- third copper sleeve, 18 -Support shaft, 19-Second bolt kit, 20-Support frame, 21-Second copper sleeve, 22-Fork bushing, 23-Side support plate, 24-Bottom support plate, 25-Swing arm shaft, 26-Swing arm shaft sleeve, 27-Connecting arm, 28-Support shaft sleeve, 29-Adjusting cylinder, 30-Cylinder support shaft, 31-Slag scoop curved handle, 32-Curved handle positioning plate, 33-Slag scoop, 34-Slag scoop spout, 35-First positioning line, 36-Second positioning line. DETAILED DESCRIPTION

[0036] The following is only a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by any technician familiar with this technical field within the technical scope disclosed by the present invention should be covered by the scope of protection of the present invention.

[0037] The fixed connection or fixed installation method described in this embodiment includes but is not limited to fixed connection methods known in the prior art such as screw connection and welding; the words "left", "right", "inside", "outside" and so on used to describe the direction in this embodiment are only for the convenience of description and do not represent limitations on the components in the embodiment; the words "first", "second" and so on are only for distinction and do not indicate the importance or installation order of each component, nor do they indicate the difference between components.

[0038] Attachment Figure 1 To the attached Figure 8This is a specific embodiment of the present invention. This embodiment provides a liquid slag conveying device for heat exchange testing of solidification molds. The basic structure is a lever body, including an operating shaft 2 installed on a support frame 20 through a rotating pitch assembly, wherein a circular flange is fixedly installed on the top of the support frame 20, and the flange is fixed to the flange at the bottom of the support shaft 18 through a second bolt kit 19; one end of the rotating pitch assembly is rotatably connected to the support shaft 18, and the other end is rotatably connected to the middle rod body of the operating shaft 2 through an adjusting cylinder 29. Specifically, the main body of the operating shaft 2 is a solid or hollow rigid round rod, which is installed through the adjusting cylinder 29 and can rotate freely; an operating handle 1 is welded to the end of the power arm of the operating shaft 2, which serves as the arm grip during manual slag removal operations; a slag scoop assembly 8 is fixedly installed at the end of the resistance arm, which is used to carry liquid slag and move around the fulcrum to transport the slag from the slag pool to the upper mouth of the solidification mold. The support frame 20 is connected to the ground to support the self-weight of the entire conveying device and other forces in the horizontal and vertical directions during operation, so that the device can operate smoothly.

[0039] Within a certain length of both ends of the adjusting cylinder 29, a stepped structure is machined, forming an inner cavity with a diameter slightly larger than the inner diameter of the adjusting cylinder 29 body. This cavity is used to mount the first copper sleeve 5. The first copper sleeve 5 and the adjusting cylinder 29 are fixed together by inlaying, and there is no relative movement between the first copper sleeve 5 and the adjusting cylinder 29 during operation. The outer end of the first copper sleeve 5 is flush with or slightly shorter than the outer end of the adjusting cylinder 29 to prevent movement obstruction. The operating shaft 2 is freely rotatable around its axis within the first copper sleeve 5. In other words, the inner cavity of the adjusting cylinder 29 is dumbbell-shaped, with a first mounting cavity formed at each end that is larger than the inner diameter of the central portion of the adjusting cylinder 29. The first copper sleeve 5, whose inner diameter is slightly larger than the outer diameter of the operating shaft 2 body, is fixedly mounted within the first mounting cavity. The inner diameter of the first copper sleeve 5 is smaller than the inner diameter of the adjusting cylinder 29 body.

[0040] To prevent the control shaft 2 from axially shifting within the adjustment cylinder 29, a limiting component is installed at both ends of the control shaft 2 located within the adjustment cylinder 29. Specifically, the limiting component is a fixed end sleeve 4 with a stepped internal cavity. The smaller inner diameter portion of the fixed end sleeve 4, namely the small inner diameter end, mates with the control shaft 2 body. Specifically, this small inner diameter end is fixedly connected to the control shaft 2 body via a first fixing pin 3 and a first cotter pin 9. The larger inner diameter portion of the fixed end sleeve 4, namely the large inner diameter end, has a clearance fit with the adjustment cylinder 29. Specifically, the large diameter end is sleeved outside the adjustment cylinder 29 and has a certain clearance with the end and outer surface of the adjustment cylinder 29, thereby allowing the control shaft 2 to rotate about the central axis of the adjustment cylinder 29. The stepped end surface of the fixed end sleeve 4 limits the axial shift of the control shaft 2 body along the adjustment cylinder 29, thereby fixing the position of the control shaft 2 and the fulcrum of the rotation and pitch structure, and ensuring a certain length of the power arm and resistance arm. Of course, the limiting component can also be other structures such as a bearing and a limit pin, as long as it can prevent the operating shaft rod 2 from axially moving inside the adjustment cylinder 29.

[0041] As attached Figure 7 As shown, the slag scoop assembly 8 specifically comprises a fixedly mounted curved slag scoop handle 31 and a slag scoop 33. The slag scoop 33 is a steel container for holding liquid slag and is equipped with a slag scoop spout 34. The curved slag scoop handle 31 is used to rigidly connect the slag scoop 33 to the operating shaft 2. The curved slag scoop handle 31 is a curved solid or hollow shaft. The purpose of the curved shape is to prevent the slag scoop 33 from being aligned with the central axis of the operating shaft 2 when the operating shaft 2 is rotated, thereby allowing the slag scoop 33 to traverse a circular motion around the axis, facilitating slag collection and removal from the slag pool.

[0042] The curved handle 31 of the slag scoop is fixedly connected to the resistance arm end of the operating shaft 2 by means of sleeve insertion and fixed pin quick connection. Specifically, a plurality of first fixed pin insertion holes for connection are machined at the appropriate position of the free end of the curved handle 31 of the slag scoop, i.e., the connection end; the resistance arm end of the operating shaft 2 body is a hollow structure and is machined with second fixed pin insertion holes corresponding in number and position to the first fixed pin insertion holes; the free end of the curved handle 31 of the slag scoop is inserted into the hollow end of the resistance arm of the lever structure, the insertion length is adjusted so that the fixed pin insertion holes on the two parts are aligned, the second fixed pin 7 is inserted, and the second cotter pin 11 is inserted into the circular hole at the end of the second fixed pin 7, and the two legs of the cotter pin are bent apart to prevent it from falling off.

[0043] In order to facilitate the installation of the slag scoop assembly 8 and the operating shaft 2, a shaft positioning plate 12 is installed at the hollow end of the resistance arm of the operating shaft 2, and a crank positioning plate 32 is installed at the corresponding position of the free end of the slag scoop handle 31 connected to the operating shaft 2; during the connection operation, the free end of the slag scoop handle 31 is inserted into the hollow end of the resistance arm of the lever structure, and the two positioning plates are in contact with each other to realize the positioning function. At this time, it is only necessary to rotate the slag scoop assembly 8 or the operating shaft 2 to easily align the fixing pin insertion holes on the two components. A more superior way is to provide longitudinal shallow grooves for positioning and alignment at appropriate positions on the outer surfaces of the shaft positioning plate 12 and the crank positioning plate 32, respectively referred to as the first positioning line 35 and the second positioning line 36. During assembly, after completing axial positioning under the restriction of the two positioning plates, the slag scoop assembly 8 is rotated appropriately to align the two positioning lines so that the two fixing pin insertion holes are aligned; in addition, the positioning plates can also increase the strength and rigidity of the connection area of the relevant components to prevent deformation and damage.

[0044] Of course, the slag scoop assembly 8 can also be an ordinary slag scoop 33 fixedly connected to the resistance arm end of the operating shaft 2, and the structure only needs to meet the function of scooping liquid slag.

[0045] The rotation and pitch structure includes a rotation support assembly 10 and a multi-dimensional motion adjustment component 6 that are hinged to each other. Specifically, the main part of the multi-dimensional motion adjustment device 6 is the aforementioned adjustment cylinder 29, which is a hollow cylindrical structure. The inner hole of the cylinder is used to install the operating shaft 2; in the middle part of the outer wall of the adjustment cylinder 29, a pair of coaxial cylindrical support shafts 30 are symmetrically arranged. The cylindrical support shafts 30 are hinged to the rotation support assembly so that the operating shaft 2 can swing up and down in the vertical plane around this intersection through the adjustment cylinder 29.

[0046] The rotating support assembly 10 includes a horizontal rotating arm assembly 14 and a supporting fork assembly 13 which are rotatably connected to each other. The structure of the supporting fork assembly 13 is shown in the attached figure. Figure 4 As shown, the main body consists of a horizontal bottom support plate 24 and two parallel side support plates 23 with forks vertically fixedly mounted on the top of the bottom support plate 24. A rotating arm shaft 25 for rotationally connecting to the horizontal rotating arm assembly 14 is vertically fixedly mounted below the bottom support plate 24. Copper fork bushings 22 are embedded in the forks on the two side support plates 23. The two cylindrical support shafts 30 of the multi-dimensional motion adjustment device 6 are placed in the fork bushings 22 to form a hinge, thereby forming a hinge with the support fork assembly 13 and forming the fulcrum of the lever structure. During use, the cylindrical support shafts 30 are in contact with the fork bushings 22, but not directly with the base of the side support plates 23. The cylindrical support shafts 30 transmit the gravity and external working forces of the multi-dimensional motion adjustment device 6, the operating shaft 2, and the slag scoop assembly 8 to the support fork assembly.

[0047] The structure of the horizontal rotating arm kit 14 is shown in the attached Figure 3 、 4 As shown in Figure 5, it includes a rotating arm shaft sleeve 26 and a support shaft sleeve 28 fixedly connected together by a connecting arm 27, and the axis of the rotating arm shaft sleeve 26 is parallel to the axis of the support shaft sleeve 28. A second copper sleeve 21 is embedded in the rotating arm shaft sleeve 26, and the two are relatively fixed, that is, the overall length of the second copper sleeve 21 is basically the same as the inner cavity length of the rotating arm shaft sleeve 26, and it is fixedly installed in the rotating arm shaft sleeve 26; the rotating arm shaft 25 is installed in the second copper sleeve 21 and can rotate freely. The upper and lower ends of the support shaft sleeve 28 are made into a step shape with a diameter larger than the basic inner diameter of the sleeve, and the third copper sleeve 17 is embedded in the step, that is, the inner cavity of the support shaft sleeve 28 is dumbbell-shaped, and both ends are second installation cavities with an inner diameter larger than the inner diameter of the middle body of the support shaft sleeve 28. The third copper sleeve 17 is fixedly installed in the second installation cavity. The support shaft sleeve 28 is sleeved on the support shaft 18 fixedly installed on the top of the support frame 20 and can rotate freely. A circular protrusion is provided at the upper end of the support shaft sleeve 28 , which is integrally formed with the support shaft sleeve 28 , and a disc-shaped upper end cover 16 is installed via a first bolt kit 15 to seal the support shaft sleeve 28 and prevent dust from entering the sleeve.

[0048] The rotary support assembly 10 may also be other structures, such as a sleeve or a bearing sleeved on the support shaft 18 .

[0049] During assembly, the axis of the support shaft 18 is parallel to the axis of the swing arm shaft sleeve 26 and the axis of the support shaft sleeve 28 and is perpendicular to the horizontal plane.

[0050] The function of the liquid slag conveying device is to transport the slag from the slag pool to the solidification mold. During the entire transportation process, its most direct functional component, the slag spoon, will undergo a large change in spatial position, and the operation trajectory is complex, especially in the slag taking and pouring operation stages, which requires flexible adjustment at any time according to the specific situation; in the slag taking and pouring process, the slag spoon is required to be tilted, so the slag spoon must also have a rotation function; when taking slag, the slag spoon is inserted into the high-temperature liquid slag, and it is not filled immediately. Instead, the slag spoon is first swung quickly several times in a short period of time to perform the slag hanging operation, that is, a layer of slag is first hung on the spoon wall at room temperature and quickly solidifies and adheres to it to protect the slag spoon from being burned.

[0051] During operation, the operator manually holds the operating handle 1 and applies power to make the operating shaft 2 swing left and right, lift up and down, and perform other compound adjustment actions, so that the slag spoon 33 fixed on the other end of the operating shaft 2 reaches the slag pool position and extends into the liquid slag; then the operating handle 1 is rotated around the central axis of the operating shaft 2 by a certain angle and restored, and then rotated in the opposite direction by a certain angle and restored to perform the slag spoon hanging slag operation, and then continues to rotate and restore, so that the slag spoon 33 is loaded with liquid slag and the slag spoon mouth is kept facing upwards; after that, appropriate up and down, left and right and other adjustment actions are performed to move the slag spoon 33 to the appropriate position above the solidification mold; finally, the slag spoon 33 is rotated to inject the liquid slag into the solidification mold through the slag spoon nozzle 34; after the slag injection is completed, a conveying process is completed, and the next round of conveying operation cycle is repeated, or the conveying operation is ended and the conveying device is placed in the waiting position.

[0052] During the slag conveying process, the entire device functions as a lever structure, with its dynamic fulcrum playing a crucial role. With simple manual operation, it forms a complex spatial motion trajectory, enabling the conveyed material to smoothly move from one spatial point to another. The dynamic fulcrum can move within a horizontal plane, achieved by the horizontally rotating arm assembly 14, a movable component of the rotary support assembly 10, pivoting around the support axis 18. The operating shaft 2 of this device pivots up and down within a vertical plane, using the contact point between the cylindrical support shaft 30 on the multi-dimensional motion adjustment device 6 and the concave groove on the support fork assembly 13 as the fulcrum. It also pivots left and right within any horizontal plane, using the rotating arm shaft 25 on the support fork assembly 13 as the fulcrum. In actual operation, the operating shaft 2 can simultaneously move around these two fulcrums, resulting in a composite motion of the slag scoop 33 that combines these two motions, thus achieving a composite motion that allows the slag scoop 33 to reach any position. Furthermore, this composite motion, coupled with the dynamic rotation of the fulcrum to alter its position, allows the slag scoop 33, a working component connected to the operating shaft 2, to reach any position permitted by the device's geometric dimensions.

Claims

1. A liquid slag conveying device for a solidification mold heat exchange test, comprising a support frame (20), characterized in that: A vertical support shaft (18) is fixedly mounted on the top of the support frame (20), and the support shaft (18) is rotatably connected to the rotation and pitch assembly; the rotation and pitch assembly is clearance-matched with the rod body of the operating shaft (2) through an adjusting cylinder (29); a slag scoop assembly (8) is fixedly mounted on one end of the operating shaft (2); The rotation and pitch assembly comprises a rotation support assembly (10) and a multi-dimensional motion adjustment component (6) which are hinged to each other; the rotation support assembly (10) is rotationally connected to the support shaft (18); the multi-dimensional motion adjustment component (6) comprises the adjustment cylinder (29); the adjustment cylinder (29) is hinged to the rotation support assembly (10) via a pair of symmetrical cylinder support shafts (30) fixedly mounted on the middle portion of the outer side wall; The operating shaft (2) is located at both ends of the adjusting cylinder (29) and is provided with limiting components; The limiting component is a fixed end sleeve (4) with a stepped internal cavity, the small inner diameter end of the fixed end sleeve (4) is fixedly connected to the operating shaft (2), and the large inner diameter end of the fixed end sleeve (4) is sleeved outside the adjusting cylinder (29) and has a clearance fit with the adjusting cylinder (29); The rotary support assembly (10) comprises a horizontal rotary arm kit (14) and a support fork kit (13) which are rotatably connected to each other; the support fork kit (13) comprises a bottom support plate (24) and two parallel side support plates (23) with forks vertically mounted on the top of the bottom support plate (24), wherein the cylindrical support shaft (30) is placed in the forks; a rotary arm shaft (25) is vertically fixedly mounted on the bottom of the bottom support plate (24); the horizontal rotary arm kit (14) comprises a rotary arm shaft sleeve (26) and a support shaft sleeve (28) which are fixedly connected together by a connecting arm (27), wherein the axis of the rotary arm shaft sleeve (26) is parallel to the axis of the support shaft sleeve (28); the rotary arm shaft (25) is rotatably connected to the rotary arm shaft sleeve (26); and the support shaft sleeve (28) is rotatably connected to the support shaft (18).

2. The liquid slag conveying device for solidification mold heat exchange test according to claim 1, characterized in that: The inner cavity of the adjustment cylinder (29) is dumbbell-shaped, with both ends being first installation cavities with an inner diameter larger than that of the middle main body; a first copper sleeve (5) is fixedly installed in the first installation cavity; and the operating shaft (2) is located in the first copper sleeve (5) and can rotate freely.

3. The liquid slag conveying device for solidification mold heat exchange test according to claim 1, characterized in that: A copper fork bushing (22) is embedded in the fork on the side support plate (23), and the cylindrical support shaft (30) is hinged to the fork bushing (22).

4. The liquid slag conveying device for solidification mold heat exchange test according to claim 3, characterized in that: A second copper sleeve (21) is fixedly installed in the arm shaft sleeve (26); the inner cavity of the support shaft sleeve (28) is dumbbell-shaped, with both ends being second installation cavities with an inner diameter larger than the inner diameter of the middle body, and a third copper sleeve (17) is fixedly installed in the second installation cavity.

5. The liquid slag conveying device for solidification mold heat exchange test according to claim 4, characterized in that: The slag scoop assembly (8) comprises a slag scoop curved handle (31) and a slag scoop (33) fixedly mounted together; a plurality of first fixing pin insertion holes are machined on the free end of the slag scoop curved handle (31); the resistance arm end of the operating shaft (2) is a hollow structure and is machined with second fixing pin insertion holes corresponding in number and position to the first fixing pin insertion holes; the free end of the slag scoop curved handle (31) is inserted into the resistance arm end of the operating shaft (2) and fixed by a fixing pin.

6. The liquid slag conveying device for solidification mold heat exchange test according to claim 5, characterized in that: A shaft positioning plate (12) is mounted on the hollow end of the resistance arm of the operating shaft (2); and a curved handle positioning plate (32) matching the shaft positioning plate (12) is mounted on the free end of the curved handle (31) of the slag scoop.

7. The liquid slag conveying device for solidification mold heat exchange test according to claim 6, characterized in that: A first positioning line (35) is provided on the shaft positioning plate (12); and a second positioning line (36) corresponding to the first positioning line (35) is provided on the crank positioning plate (32).

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