A calcium carbide furnace screen guard suspension device

Abstract

The application discloses a calcium carbide furnace screen protection suspension device and relates to the technical field of electrode arrangement. The device comprises a calcium carbide furnace and an electrode column. The electrode column is installed on the calcium carbide furnace. Three holder copper pipes are installed in a linear array on the calcium carbide furnace. A plurality of screen protections are arranged in a ring shape on the electrode column. A configuration suspension assembly is arranged on the calcium carbide furnace. The configuration suspension assembly comprises a fixed block one. The fixed block one is arranged on the holder copper pipe. A connecting bolt is threadedly connected to the outer side wall of the fixed block one close to the upper and lower ends. Two connecting bolts are threadedly connected to a fixed block two at the ends away from the fixed block one. Through the operation of the configuration suspension assembly, the screen protection does not need to be completely disassembled when the calcium carbide furnace and the electrode column are overhauled or arranged. The overhauling and arrangement operation can be directly performed by rotating and moving away. The device does not need to rely on manual carrying of heavy screen protection, reduces the manual labor intensity, and reduces the time and effort required for manual disassembly of the screen protection.

Description

Technical Field

[0001] This invention relates to the field of electrode configuration technology, specifically to a suspension device for a calcium carbide furnace protective screen. Background Technology

[0002] The protective shield is a physical barrier surrounding the electrode posts during the calcium carbide furnace production process. Its core function is to isolate the electrode posts from high-temperature radiation, molten material splashing, and dust erosion within the furnace, protecting them from damage. Simultaneously, it reduces heat loss from the furnace to maintain the high-temperature environment required for the reaction and prevents cold air intrusion that could disrupt the reaction atmosphere. By ensuring the stability of the electrodes, the protective shield provides the foundation for the regulation of the calcium carbide furnace's electrical load control system, allowing the system to precisely match the reaction demands within the furnace and prevent energy waste or reaction stagnation.

[0003] Existing screen protectors are typically composed of multiple segments, each individually fixed to the upper part of the electrode system and then to the copper tube of the gripper via wire. This suspension method suffers from the problem of easily broken wires, which can cause the screen protector to fall, posing a safety hazard. Furthermore, the wires cannot be reused after twisting, and each disassembly and installation requires time and materials.

[0004] When it is necessary to repair the calcium carbide furnace or configure the electrodes, the staff usually need to completely remove the protective screen from the suspension device and carry out the repair work through the gap exposed by the removal of the protective screen. However, since the existing calcium carbide furnace protective screens are usually heavy, the disassembly is cumbersome and the operation is difficult, which will greatly prolong the overall time spent on repair and electrode configuration.

[0005] Furthermore, the protective screens of different sizes need to be replaced and the protection method adjusted at different stages of the calcium carbide furnace production. However, the existing wire-fixed suspension method is difficult to flexibly adapt to the adjustment of the number and size of the protective screens.

[0006] Therefore, a suspension device for the protective screen of a calcium carbide furnace is proposed. Summary of the Invention

[0007] The purpose of this invention is to provide a suspension device for a protective screen of a calcium carbide furnace to solve the problems mentioned in the background art.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a suspension device for a calcium carbide furnace screen, comprising a calcium carbide furnace and an electrode column, the electrode column being mounted on the calcium carbide furnace, three holder copper tubes being mounted in a linear array on the calcium carbide furnace, multiple screens being arranged in a ring on the electrode column, and a suspension assembly being provided on the calcium carbide furnace, the suspension assembly including a fixing block one, the fixing block one being disposed on the holder copper tube, a connecting bolt being threaded to the upper and lower ends of the outer side wall of the fixing block one, the two connecting bolts being threaded to a fixing block two at the ends away from the fixing block one, the fixing block two having multiple positioning screw holes arranged in a linear array on the side away from the fixing block one, a fixing rod being provided on the side of the fixing block two away from the fixing block one, two connecting blocks being symmetrically fixedly connected to the fixing rod, each of the two connecting blocks being threadedly connected to a positioning bolt, and a suspension rod being hinged to each of the bottom ends of the fixing rod.

[0009] Furthermore, a bottom ring is fixedly connected to the top surface of the calcium carbide furnace, an inner ring is fixedly connected to the top surface of the bottom ring, an outer ring is fitted on the bottom ring, and multiple fixing bolts are threaded in a ring array on the outer ring. Multiple positioning grooves are opened in a ring array on both the inner and outer rings, and insert plates are snapped into the positioning grooves.

[0010] Furthermore, three semi-circular grooves are provided on the opposite side of both the fixing block 1 and the fixing block 2 in a straight line. Two adjacent semi-circular grooves on the fixing block 1 and the fixing block 2 can be combined to form a complete circular groove.

[0011] Furthermore, the positioning bolt is threaded into the positioning screw hole.

[0012] Furthermore, the end of the suspension rod away from the fixed rod is designed as a ring, with an opening on the ring, and a stop is rotatably connected to the ring via a torsion spring.

[0013] Furthermore, the bottom ring has multiple internal threaded grooves that are compatible with the fixing bolts.

[0014] Furthermore, the insert is designed in an I-shape.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] By configuring the suspension components, a combination of suspension and contact limiting was designed to replace the iron fixing wire in the existing technology. This ensures that the protective screen cannot shift, guarantees a stable gap between the protective screen and the electrodes, and avoids safety hazards such as electrode wear caused by abnormal gaps. Furthermore, the absence of protective screen displacement ensures that heat does not leak out of the furnace and cold air does not intrude, assisting the power load control system in maintaining a stable furnace temperature. This solves the problem of existing iron wire suspensions easily breaking and causing the protective screen to fall. Moreover, the suspension components are reusable, addressing the issue of existing iron wire suspension methods where twisted wires cannot be reused, resulting in time-consuming and material-intensive disassembly and installation.

[0017] By configuring the operation of the suspension components, when inspecting or configuring the calcium carbide furnace and electrode column, it is not necessary to completely disassemble the protective screen. The screen can be rotated and moved directly to carry out the inspection and configuration work. There is no need to rely on manual handling of the heavy screen, which reduces the intensity of manual labor and reduces the time and effort required to manually disassemble the protective screen.

[0018] By configuring the operation of the suspension components, the number and model of the protective screens can be flexibly adjusted according to factors such as the load and reaction intensity of the calcium carbide furnace at different production stages. This improves the adaptability of the suspension components to different numbers and models of protective screens and solves the problem that the existing wire-fixed suspension method is difficult to flexibly adapt to the adjustment of the number and size of the protective screens. Attached Figure Description

[0019] Figure 1 This is a three-dimensional schematic diagram of the overall device of the present invention;

[0020] Figure 2 This is a schematic diagram showing the positions of the fixing block 1, fixing block 2, connecting bolts, and other structures of the present invention;

[0021] Figure 3 For the present invention Figure 2 Enlarged view of point A in the middle;

[0022] Figure 4 This is a cross-sectional schematic diagram of the structure of the present invention, including fixing block one, fixing block two, connecting bolts, etc.

[0023] Figure 5 For the present invention Figure 4 Enlarged view of point B in the middle;

[0024] Figure 6 For the present invention Figure 4 Enlarged view of point C in the middle;

[0025] Figure 7 This is an exploded view of the structure of the protective screen, fixing rod, fixing block, etc. of the present invention;

[0026] Figure 8 This is an exploded view of the bottom ring, outer ring, insert plate, and other structures of the present invention.

[0027] In the picture:

[0028] 11. Calcium carbide furnace; 12. Electrode post; 13. Holder copper tube; 14. Protective screen;

[0029] 21. Fixing block one; 22. Fixing block two; 23. Connecting bolt; 24. Positioning screw hole; 25. Fixing rod; 26. Connecting block; 27. Positioning bolt; 28. Suspension rod; 29. ​​Bottom ring; 210. Inner ring; 211. Outer ring; 212. Fixing bolt; 213. Positioning groove; 214. Insert plate. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

[0031] The embodiments provided by this invention:

[0032] Please see Figures 1 to 8 As shown, a calcium carbide furnace protective screen suspension device includes a calcium carbide furnace 11 and an electrode column 12. The electrode column 12 is installed on the calcium carbide furnace 11. Three holder copper tubes 13 are installed on the calcium carbide furnace 11 in a linear array. Multiple protective screens 14 are arranged in a ring on the electrode column 12.

[0033] In the prior art, the top of the screen protector 14 is fixedly connected with a hanging lug.

[0034] The calcium carbide furnace 11 is equipped with a suspension assembly, which includes a fixing block 21. The fixing block 21 is mounted on the copper tube 13 of the handle. A connecting bolt 23 is threaded to both ends of the outer wall of the fixing block 21 near the top and bottom. The ends of the two connecting bolts 23 away from the fixing block 21 are threaded to a fixing block 22. Multiple positioning screw holes 24 are arranged in a straight line on the side of the fixing block 22 away from the fixing block 21. A fixing rod 25 is provided on the side of the fixing block 22 away from the fixing block 21. Two connecting blocks 26 are symmetrically fixed to the fixing rod 25. Each connecting block 26 is threaded with a positioning bolt 27. The two positioning bolts 27 pass through the adjacent connecting blocks 26 and are threaded into the positioning screw holes 24. A suspension rod 28 is hinged to each end of the bottom of the fixing rod 25. The movable connection method used in this scheme is referenced from... Figure 3As shown, two circular ring structures are connected to each other, which also provides a certain degree of freedom for the suspension rod 28. The top surface of the calcium carbide furnace 11 is fixedly connected to the bottom ring 29, and the top surface of the bottom ring 29 is fixedly connected to the inner ring 210. The bottom ring 29 is fitted with an outer ring 211, and the outer ring 211 is threaded with multiple fixing bolts 212 in a circular array. The outer ring 211 is connected to the bottom ring 29 through the fixing bolts 212. Both the inner ring 210 and the outer ring 211 are provided with multiple positioning grooves 213 in a circular array, and several of the positioning grooves 213 are fitted with insert plates 214.

[0035] Among them: such as Figure 5 As shown, three semi-circular grooves are provided on the opposite side of the fixing block 1 21 and the fixing block 22 in a straight line. Two adjacent semi-circular grooves on the fixing block 1 21 and the fixing block 22 can be combined to form a complete circular groove. This complete circular groove is adapted to the copper tube 13 of the gripper, so that the fixing block 1 21 and the fixing block 22 are fitted onto the outer surface of the copper tube 13 of the gripper through the circular groove. There are a total of three complete circular grooves, and the three complete circular grooves correspond to the three copper tubes 13 of the gripper respectively.

[0036] Among them, the height of the fixing rod 25 can be adjusted by selecting the positioning screw hole 24 that is threadedly connected to the positioning bolt 27.

[0037] Specifically, the end of the suspension rod 28 furthest from the fixed rod 25 is designed as a ring, with an opening on the ring. A stop is rotatably connected to the ring via a torsion spring. The specific arrangement is as follows: the stop is used to block the opening of the ring of the suspension rod 28, but by deforming the torsion spring, the stop can be pushed to deflect inward within the ring, thus exposing the opening of the ring.

[0038] Among them, the bottom ring 29 has multiple internal thread grooves that are adapted to the fixing bolt 212. When the outer ring 211 is threadedly connected to the bottom ring 29 by the fixing bolt 212, the top end of the outer ring 211 is flush with the top end of the inner ring 210.

[0039] Among them, multiple insert plates 214 are provided. The insert plates 214 are set in the shape of an I-beam. Their function is as follows: when the insert plates 214 are simultaneously engaged in the positioning grooves 213 on the outer ring 211 and the inner ring 210, the two ends of the insert plates 214 respectively abut and press against the inner ring surface of the inner ring 210 and the outer ring surface of the outer ring 211. That is, the I-beam-shaped crossbars at both ends of the insert plates 214 can limit the insert plates 214 in the positioning grooves 213, so that they will not move horizontally in the positioning grooves 213, but can only be pulled upward longitudinally.

[0040] In the initial stage of configuring the suspension assembly, i.e. before the screen protector 14 is suspended and installed, the internal structure of the suspension assembly is in the following state:

[0041] Two connecting bolts 23 are threaded onto the outer wall of the first fixing block 21, and together they connect the first fixing block 21 and the second fixing block 22 into a whole. A positioning bolt 27 is threaded into a positioning screw hole 24, and through this threaded connection, the positioning bolt 27 fixes the fixing rod 25 to the second fixing block 22. The ends of the two suspension rods 28 furthest from the fixing rod 25 hang naturally. At this time, the fixing bolt 212 does not thread the outer ring 211 onto the bottom ring 29. The bottom end of the outer ring 211 contacts and abuts against the top surface of the calcium carbide furnace 11, meaning the outer ring 211 is not located at the top of the outer ring surface of the bottom ring 29. The top of the outer ring 211 is flush with the bottom ring 29, and the insert plate 214 is not inserted into the positioning groove 213.

[0042] When configuring the suspension component, i.e. when the screen protector 14 needs to be suspended, the running status of the suspension component configuration is as follows:

[0043] Based on the dimensions of the currently installed screen protector 14, the staff adjusted the position of the fixing rod 25 on the fixing block 22. Specifically, the staff unscrewed the positioning bolt 27 so that the fixing rod 25 was no longer connected to the fixing block 22. Then, the fixing rod 25 was moved up and down to the required height. Subsequently, the suspension rod 28 was aligned with the corresponding positioning screw hole 24 and tightened, thereby adjusting the height and fixing the position of the fixing rod 25 on the fixing block 22.

[0044] The staff then suspends the screen protector 14 on the two suspension rods 28. Specifically, the staff places the screen protector 14 on the upper surface of the bottom ring 29, and then rotates the two suspension rods 28 respectively, causing them to converge and rotate at the bottom of the fixed rod 25. The staff then presses the lugs of the screen protector 14 against the stop block of the ring of the suspension rod 28, causing the stop block of the suspension rod 28 to deflect inward within the ring. Simultaneously, this causes the torsion spring to deform elastically. At this point, the lugs of the screen protector 14, along with the stop block, enter the ring of the suspension rod 28. As the lifting lugs of the screen protector 14 move into the ring of the suspension rod 28, when the lifting lugs of the screen protector 14 move to a position where they no longer abut against the stop block, the stop block deflects and resets within the ring under the elastic reset action of the torsion spring, thus sealing the opening of the ring and locking the lifting lugs of the screen protector 14 within the ring of the suspension rod 28. At this time, the screen protector 14 is simultaneously hinged and movably connected to the lifting rings at the bottom of the two suspension rods 28, and the bottom of the screen protector 14 abuts against the upper surface of the bottom ring 29, while the inner surface of the bottom of the screen protector 14 abuts against and fits against the outer ring surface of the inner ring 210.

[0045] After completion, the worker moves the outer ring 211 upwards until its top is flush with the top of the inner ring 210. Then, the worker tightens the outer ring 211 and bottom ring 29 with the fixing bolts 212. Next, the worker takes two insert plates 214 and inserts them into the positioning slots 213 on both sides of the screen protector 14. This positions the screen protector 14 so that its inner surface is contacted by the inner ring 210, its bottom by the bottom ring 29, its outer surface by the outer ring 211, its top by the two suspension rods 28, and its sides by the two insert plates 214. The installation of the screen protector 14 is now complete. The worker can repeat the above process to suspend multiple screen protectors 14 around the electrode post 12.

[0046] Please note: The following is for reference only. Figure 1 As shown, with the two sides of the screen protector 14 being abutted and limited by the insert plate 214, after installation, the two adjacent screen protectors 14 are separated by the insert plate 214. This gap is used to reserve space for the screen protector 14 to cool down due to thermal expansion. This can prevent the multiple screen protectors 14 from being squeezed and deformed by each other after thermal expansion, thus ensuring the long-term stable use of the screen protector 14.

[0047] When workers need to inspect or configure the calcium carbide furnace 11 and electrode posts 12, they need to open the multiple protective screens 14 that are wound in a ring to facilitate operation. At this time, the suspension assembly operates as follows:

[0048] The workers unscrewed all the fixing bolts 212 and removed the insert plate 214 from the positioning groove 213. As a result, the outer ring 211 was no longer fastened to the bottom ring 29. Under the influence of gravity, the entire outer ring 211 moved downwards on the outer surface of the bottom ring 29 until the bottom of the outer ring 211 came into contact with the calcium carbide furnace 11. At this point, the top of the outer ring 211 was flush with the top of the bottom ring 29. An opening then appeared on the top of the bottom ring 29 facing outwards.

[0049] The staff then selected the screen protector 14 at the location where the opening needed to be opened, and removed one of the two suspension rods 28 that were hinged to the screen protector 14. Specifically, the staff pushed the baffle of the ring of the suspension rod 28 inward, causing the torsion spring of the suspension rod 28 to deform elastically, and exposing the opening of the ring of the suspension rod 28. The staff then removed the screen protector 14 from the opening of the ring. After removal, the user no longer pushed the baffle, and the opening of the ring was sealed again under the elastic reset of the torsion spring.

[0050] At this point, the lifting lug of the screen protector 14 is only hinged to a suspension rod 28. The operator rotates the screen protector 14 in the direction where the suspension rod 28 is hinged to the fixed rod 25, so that the screen protector 14 rotates around the fulcrum at the end closest to the suspension rod 28. When the screen protector 14 rotates to be perpendicular to the fixed rod 25, the user inserts two insert plates 214 on both sides of the screen protector 14. Specifically, to facilitate understanding of the contact area between the insert plates 214 and the screen protector 14 when the screen protector 14 is installed on the bottom ring 29... The left and right sides are defined as the two sides, and the directions facing the calcium carbide furnace 11 and away from the calcium carbide furnace 11 are defined as the front and rear sides. At this time, the insert plate 214 is inserted into the inner ring 210, and the insert plate 214 contacts the front and rear sides of the protective screen 14, clamping the bottom end of the protective screen 14 near the suspension rod 28 after rotation, so that it can no longer rotate. The positioning grooves 213 distributed on the inner ring 210 correspond to the two sides of the protective screen 14 at this time, so that the two insert plates 214 abut against the rotated protective screen 14, fixing the position of the protective screen 14 after rotation. That is, as the protective screen 14 rotates, the multiple protective screens 14 that are wrapped in a ring on the electrode post 12 are opened with a notch. The user can inspect or configure the calcium carbide furnace 11 and the electrode post 12 through the notch, and can move the protective screen 14 to expose the notch without completely disassembling it.

[0051] When it is necessary to replace the screen protector 14 with a different size, the specific configuration of the suspension component is as follows:

[0052] At this point, without the screen protector 14 installed, the workers adjust the number of fixing blocks 1 (21) and 22 (22). Specifically: When increasing the number of fixing blocks 1 (21) and 22 (22), the workers align the semi-circular grooves on the new fixing blocks 1 (21) and 22 (22) with the grip copper tube 13. Then, they push the fixing blocks 1 (21) and 22 (22) against each other on the grip copper tube 13. Finally, they use connecting bolts 23 to thread-tighten fixing blocks 1 (21) and 22 (22) together. This completes the installation of fixing blocks 1 (21) and 22 (22). When decreasing the number of fixing blocks 1 (21) and 22 (22) (22), the workers unscrew the two connecting bolts 23 and then remove the fixing blocks 1 (21) and 22 (22) from the grip copper tube 13. This completes the removal of fixing blocks 1 (21) and 22 (22).

[0053] Since different sizes of screen protectors 14 need to be replaced, the width and height of different screen protectors 14 will vary. Furthermore, after replacing with different models of screen protectors 14, the suspension positions of multiple screen protectors 14 on the grip copper tube 13 will also change accordingly with the number of screen protectors 14. The user can push the fixing block 21 on the grip copper tube 13. Because the circular groove formed by the combination of fixing block 21 and fixing block 22 is slidably adapted to the grip copper tube 13, the user can push fixing block 21, fixing block 22, and the fixing rod 25, suspension rod 28, and other structures on them to slide along the grip copper tube 13, thereby adjusting the suspension positions of fixing block 21, fixing block 22, and other structures on the grip copper tube 13.

[0054] It should be noted that: Fixing block 1 21 and fixing block 2 22 can slide on the copper tube 13 of the handle, but when the screen protector 14 is installed, the two sides of the screen protector 14 are limited by the two insert plates 214, so fixing block 1 21 and fixing block 2 22 cannot slide on the copper tube 13 of the handle. They will not affect the screen protector 14 that has been suspended and installed, and only play a role when adjusting the suspension position.

[0055] Since the height of the screen protector 14 varies depending on its size and model, the user can adjust the height and fix the position of the fixing rod 25 on the fixing block 22 by aligning the suspension rod 28 with the corresponding positioning screw hole 24 and tightening the thread, as mentioned above. This allows for adjustment of the suspension height, ensuring that the bottom of the screen protector 14 can contact the top surface of the bottom ring 29 when suspended.

[0056] Once the quantity and position of fixing blocks 1 21 and 22 are adjusted and configured, and the height of fixing rod 25 is adjusted and configured, the staff will hinge the new screen 14 to the bottom of the two suspension rods 28 according to the operation mentioned above, then tighten the outer ring 211 onto the bottom ring 29, and insert a plate 214 on each side of the newly suspended screen 14. At this point, the configuration of the newly replaced screen 14 of different sizes and models is completed.

[0057] In summary, by configuring the operation of the suspension components, the following beneficial effects can be achieved, as detailed below:

[0058] By configuring the suspension assembly, a combination of suspension and contact limiting is designed to replace the iron fixing wire in the existing technology. This ensures that the protective screen 14 cannot move, guarantees the stability of the gap between the protective screen 14 and the electrode, and avoids safety hazards such as electrode wear caused by abnormal gaps. Furthermore, the absence of displacement of the protective screen 14 ensures that heat does not leak out of the furnace and cold air does not intrude, assisting the power load control system in maintaining a stable furnace temperature. This solves the problem of existing iron wire suspensions easily breaking and causing the protective screen 14 to fall. Moreover, the suspension assembly is reusable, solving the problem of existing iron wire suspension methods where twisted wires cannot be reused, resulting in time-consuming and material-intensive disassembly and installation.

[0059] By configuring the operation of the suspension components, when inspecting or configuring the calcium carbide furnace 11 and electrode column 12, it is not necessary to completely disassemble the protective screen 14. The screen can be rotated and moved directly to carry out the inspection and configuration work. There is no need to rely on manual handling of the heavy screen, which reduces the intensity of manual labor and reduces the time and effort required to manually disassemble the protective screen 14.

[0060] By configuring the operation of the suspension components, the number and model of the protective screens 14 can be flexibly adjusted according to factors such as the load and reaction intensity of the calcium carbide furnace 11 at different production stages. This improves the adaptability of the suspension components to different numbers and models of protective screens 14 and solves the problem that the existing wire-fixed suspension method is difficult to flexibly adapt to the adjustment of the number and size of the protective screens 14.

[0061] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0062] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A suspension device for a calcium carbide furnace guardrail, comprising a calcium carbide furnace (11) and electrode posts (12), wherein the electrode posts (12) are mounted on the calcium carbide furnace (11), three copper holder tubes (13) are mounted in a linear array on the calcium carbide furnace (11), and multiple guardrails (14) are arranged in a ring on the electrode posts (12), characterized in that: The calcium carbide furnace (11) is equipped with a suspension assembly, which includes a fixing block one (21). The fixing block one (21) is set on the copper tube (13) of the handle. The outer side wall of the fixing block one (21) is threaded with a connecting bolt (23) near the upper and lower ends. The two connecting bolts (23) are threaded together at the ends away from the fixing block one (21) to a fixing block two (22). The side of the fixing block two (22) away from the fixing block one (21) has multiple positioning screw holes (24) in a straight array. The side of the fixing block two (22) away from the fixing block one (21) is provided with a fixing rod (25). Two connecting blocks (26) are symmetrically fixedly connected to the fixing rod (25). Each of the two connecting blocks (26) is threaded with a positioning bolt (27). The bottom ends of the fixing rod (25) are hinged to a suspension rod (28). When in use, the screen (14) is suspended on the two suspension rods (28). A bottom ring (29) is fixedly connected to the top surface of the calcium carbide furnace (11). An inner ring (210) is fixedly connected to the top surface of the bottom ring (29). An outer ring (211) is fitted on the bottom ring (29). Multiple fixing bolts (212) are threadedly connected to the outer ring (211) in a ring array. Multiple positioning grooves (213) are opened in a ring array on both the inner ring (210) and the outer ring (211). Insert plates (214) are snapped into the positioning grooves (213). The fixed block 1 (21) and the fixed block 2 (22) are respectively provided with three semi-circular grooves on the opposite side in a straight line. The two adjacent semi-circular grooves on the fixed block 1 (21) and the fixed block 2 (22) can be combined to form a whole circular groove. The height of the fixing rod (25) can be adjusted by selecting the positioning screw hole (24) that is threaded to the positioning bolt (27).

2. The suspension device for a calcium carbide furnace screen according to claim 1, characterized in that: The positioning bolt (27) is threaded into the positioning screw hole (24).

3. The suspension device for a calcium carbide furnace screen according to claim 1, characterized in that: The end of the suspension rod (28) away from the fixed rod (25) is set as a ring, and an opening is provided on the ring of the suspension rod (28). At the same time, a stop block is rotatably connected to the ring by a torsion spring.

4. The suspension device for a calcium carbide furnace screen according to claim 1, characterized in that: The bottom ring (29) has multiple internal thread grooves that are compatible with the fixing bolts (212).

5. The suspension device for a calcium carbide furnace screen according to claim 1, characterized in that: The insert (214) is set in an I-shape.

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