Metal raw material suspension conveyor for chemical production

Abstract

The application relates to the technical field of chemical metal raw material conveying, in particular to a metal raw material suspension conveying device based on chemical production, which comprises a conveying track and a sliding seat connected through a traction chain on the track, and the sliding seat is connected with an outer damping sliding pipe through a suspension chain. The metal raw material suspension conveying device based on chemical production can be accurately matched with the conveying requirements of different forms of metal raw materials such as powder, liquid and block: for powder or liquid metal, an adjustable hydraulic damper is used, a cylinder, a sliding inner plug, a containing cylinder and a compression spring are matched, and liquid sloshing leakage and powder partial load agglomeration are inhibited; for blocky metal, the hydraulic damper is used to release the "rigid impact" slowly, and the residual vibration after impact is quickly dissipated through a friction block, so that the fatigue damage of the tank body is avoided, a plurality of sets of equipment are not needed, enterprise cost is reduced, and workshop space is saved.

Description

Technical Field

[0001] This invention relates to the field of chemical metal raw material conveying technology, specifically to a suspended conveying device for metal raw materials used in chemical production. Background Technology

[0002] In chemical production, the transportation of metallic raw materials (such as powdered metal catalysts, liquid metal intermediates, and bulk metal ingots) is a critical production step. Among these, overhead conveying systems have become one of the mainstream methods due to their space-saving design and adaptability to multi-level production layouts. However, existing overhead conveying systems for metallic raw materials in the chemical industry face the following core problems in practical applications:

[0003] I. Poor Vibration Damping Adaptability: Existing devices mostly use fixed damping structures or single spring vibration damping, which cannot adjust the vibration damping parameters according to the weight (e.g., full and empty tanks) and form (e.g., liquid, powder, block). When conveying liquid metal, fixed damping is difficult to suppress the center of gravity shift caused by liquid sloshing, which can easily lead to seal leakage. When conveying powdered metal, micro-vibration can easily cause the powder to clump due to uneven loading. When conveying block metal (e.g., metal ingots), the "rigid impact" during the filling and start-up / stopping stages can easily cause device deformation, and the high-frequency residual vibration after the impact can easily cause fatigue damage to the tank body, shortening the service life of the equipment.

[0004] II. Low compatibility of multi-form raw material transportation

[0005] Existing equipment is mostly designed for single-form metal raw materials. For example, equipment adapted to liquid raw materials cannot meet the impact buffering requirements of lumpy raw materials, and equipment adapted to lumpy raw materials cannot meet the micro-vibration suppression requirements of powdered raw materials. This results in the need to equip multiple sets of conveying equipment in chemical production, increasing equipment investment and site occupation costs.

[0006] In summary, given the diverse forms and complex conveying conditions of metallic raw materials in chemical production, there is an urgent need for a suspended conveying device with weight-adaptive vibration reduction and compatibility with various raw material forms. This would address the shortcomings of existing technologies and improve the safety and stability of metallic raw material conveying. Summary of the Invention

[0007] The purpose of this invention is to provide a suspended conveying device for metal raw materials used in chemical production, thereby solving the problem of poor vibration reduction adaptability of existing devices mentioned in the background art. To achieve the above objective, this invention provides the following technical solution: a suspended conveying device for metal raw materials used in chemical production, comprising a conveying track and a sliding seat connected to the track by a traction chain.

[0008] The sliding seat is connected to the external damping slide tube via a suspension chain. The external damping slide tube is axially slidably equipped with a receiving cylinder filled with hydraulic oil. The lower end of the receiving cylinder is connected to a lifting device and a safety anti-fall chain is provided between the two.

[0009] The receiving cylinder is equipped with a sliding inner plug with a throttling orifice. The cylinder is fixed at the center of the sliding inner plug. The cylinder slides through the receiving cylinder to squeeze the hydraulic oil to achieve damping.

[0010] The upper end of the cylinder is fixedly connected to a fixing ring, and the bottom of the fixing ring is connected to a compression spring sleeved on the outside of the cylinder. The lower end of the compression spring is fixed to the inner wall of the outer damping slide tube, which is used to buffer the rigid tension of the suspension chain and assist in vibration reduction.

[0011] The upper end of the cylinder is fixedly connected to a fixing ring, and the bottom of the fixing ring is connected to a compression spring sleeved on the outside of the cylinder. The lower end of the compression spring is fixed to the inner wall of the outer damping slide tube, which is used to buffer the rigid tension of the suspension chain and assist in vibration reduction.

[0012] Preferably, the upper end of the fixed ring is provided with an arc groove, and an electric telescopic rod is hinged in the arc groove. The other end of the electric telescopic rod is hinged to a dial sleeve on the outside of the cylinder through a telescopic tube. The dial is provided with a through slot for the sliding of the limiting vertical rod to avoid jamming. The limiting vertical rod is fixed on the cylinder.

[0013] The dial is fixedly connected to two wedge-shaped blocks, which abut against the annular groove inside the outer damping slide tube. The annular groove is provided with two sets of longitudinal arc-shaped wedge rods and stop rods. The dial is driven to rotate by an electric telescopic rod to achieve misalignment / engagement between the wedge-shaped blocks and the arc-shaped wedge rods, so as to adjust the compression amount of the compression spring to match the weight of the raw material.

[0014] Preferably, the upper end of the cylinder is rotatably connected to a rotating hollow tube, the rotating hollow tube has a notch and the cylinder and the rotating hollow tube are inserted and connected by a connecting shaft, the connecting shaft has a pressing groove, and a deflection plate hinged to the notch is connected in the pressing groove;

[0015] The rotating hollow tube is connected to a telescopic rod on its side, and a dial is fixedly connected to the bottom of the telescopic rod. A spring-loaded locking block is fixedly connected to the cylinder, and the spring-loaded locking block is engaged in the locking groove of the deflection plate. This is used to synchronously rotate the hollow tube and the dial, thereby realizing the displacement control of the docking shaft.

[0016] Preferably, the docking shaft extends to the bottom of the inner wall of the cylinder and is hinged to two parallel rods. The other end of the parallel rods is hinged to a plug block. The plug block extends through the side of the cylinder and the sliding inner plug into the throttling orifice. The parallel rods are deflected by the downward movement of the docking shaft, which causes the plug block to reduce the throttling orifice channel area, thus adapting to the damping force requirements of different raw material weights.

[0017] Selected, the cylindrical side is provided with an interpenetrating inner groove, and two cylinders are provided in the interpenetrating inner groove. Parallel plates are slidably connected on the cylinders. The inner end of the parallel plate is hinged to the fastening sleeve of the connecting shaft. The fastening sleeve is threaded with a fastening bolt on the side. A friction block is hinged to the outer end of the parallel plate.

[0018] The outer wall of the external damping slide tube is provided with a through groove coaxial with the fastening bolt. The connecting shaft is fixed by rotating the fastening bolt, and the parallel plate is deflected as the connecting shaft moves down, so that the friction block abuts against the inner wall of the external damping slide tube, thereby increasing the sliding resistance of the cylinder to dissipate the residual vibration of the blocky material.

[0019] Preferably, the docking shaft is provided with a flange for placing the fastening sleeve, and the docking shaft is composed of two rotatably connected shafts to ensure that the lower shaft does not move when the upper shaft rotates, thus avoiding interference from the friction block adjustment.

[0020] Preferably, the lower end of the compression spring is connected to a fixing ring plate, which is horizontally fixed to the inner wall of the outer damping slide tube and located on the outer side of the cylinder, for stabilizing the compression spring support structure.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0022] This invention enables the transport of various raw materials with high adaptability. The device can be precisely adapted to the transport needs of different forms of metal raw materials, such as powder, liquid, and lumps. For powder or liquid metal, an adjustable hydraulic damper, consisting of a cylinder, sliding inner plug, receiving cylinder, and compression spring, suppresses liquid sloshing and leakage as well as powder agglomeration due to uneven loading. For lumpy metal, the hydraulic damper mitigates the "rigid impact," and the friction block quickly dissipates the residual vibration after the impact, preventing fatigue damage to the tank body. This eliminates the need for multiple sets of equipment, reducing enterprise costs and saving factory space.

[0023] This invention features dynamically adjustable vibration reduction parameters and precise buffering effect. The device can automatically adapt the vibration reduction parameters according to the weight of the raw material: the dial is driven to rotate by an electric telescopic rod, and the compression of the spring is adjusted to match the weight of the raw material by combining the misalignment / engagement of the wedge-shaped block and the arc-shaped wedge rod; at the same time, the linkage shaft and parallel rod drive the plug block to slide, and the area of ​​the throttling orifice is adjusted synchronously to make the hydraulic damping force match the weight of the raw material. For example, the damping is increased when the tank is full to prevent swaying, and the damping is decreased when the tank is empty to prevent sluggish start-up, avoiding the limitations of fixed damping or single spring vibration reduction.

[0024] This invention features: convenient operation, suitable for industrial production; no machine shutdown required for vibration reduction parameter adjustment: the electric telescopic rod enables automated control, and the friction block adjustment required for block raw materials can be directly operated and the fastening bolts can be tightened through the groove of the external damping slide tube without disassembling the device, which not only ensures production safety but also meets the actual needs of continuous and efficient chemical production. Attached Figure Description

[0025] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0026] Figure 2 This is a three-dimensional structural diagram of the external damping slide tube and the receiving cylinder of the present invention;

[0027] Figure 3This is a three-dimensional cross-sectional view of the external damping slide tube of the present invention;

[0028] Figure 4 This is a three-dimensional unfolded structural diagram of the external damping slide tube and the receiving cylinder of the present invention;

[0029] Figure 5 For the present invention Figure 4 Enlarged view of the structure at point A in the middle;

[0030] Figure 6 This is a three-dimensional cross-sectional view of the mating shaft of the present invention;

[0031] Figure 7 This is a schematic diagram of the three-dimensional separated structure of the fixing ring, dial, and limiting vertical rod of the present invention;

[0032] Figure 8 This is a three-dimensional cross-sectional view of the housing cylinder of the present invention;

[0033] Figure 9 This is a three-dimensional cross-section of the housing cylinder and sliding inner plug of the present invention. Figure 1 ;

[0034] Figure 10 This is a three-dimensional cross-section of the housing cylinder and sliding inner plug of the present invention. Figure 2 .

[0035] In the diagram: 1. Conveying track; 2. Suspension chain; 3. External damping slide tube; 4. Receiving cylinder; 41. Sliding inner plug; 42. Throttling orifice; 43. Cylinder; 44. Fixing ring; 441. Arc groove; 442. Electric telescopic rod; 443. Stop bar; 444. Dial; 445. Limiting vertical rod; 446. Through slot; 447. Arc-shaped wedge rod; 448. Wedge-shaped block; 449. Annular groove; 45. Compression spring; 6. Insertion groove; 47. Cylinder; 48. Fastening sleeve; 49. Fastening bolt; 410. Friction block; 411. Fixing ring plate; 412. Parallel plate; 5. Rotating hollow tube; 51. Connecting shaft; 52. Extrusion groove; 53. Deflection plate; 54. Notch; 55. Telescopic rod; 56. Spring-loaded locking block; 57. Lock groove; 58. Parallel rod; 59. Plug; 6. Through groove; 7. Sliding seat; 8. Lifting device. Detailed Implementation

[0036] 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 scope of protection of the present invention.

[0037] Please see Figures 1 to 10This invention provides a technical solution: a suspended conveying device for metal raw materials used in chemical production, including a conveying track 1, multiple sliding seats 7 are provided on the conveying track 1, the multiple sliding seats 7 are connected by a traction chain, a suspension chain 2 is connected to the sliding seats 7, an external damping slide tube 3 is fixedly connected to one end of the suspension chain 2, a receiving cylinder 4 is axially slidably connected inside the external damping slide tube 3, a lifting device 8 is connected to the lower end of the receiving cylinder 4, and a safety anti-fall chain is connected between the lifting device 8 and the sliding seats 7. The safety anti-fall chain needs to be more taut than the suspension chain 2 when it breaks. The receiving cylinder 4 is filled with hydraulic oil, a sliding inner plug 41 is slidably connected inside the receiving cylinder 4, a longitudinally arranged throttling hole 42 is opened on the sliding inner plug 41, a cylinder 43 is fixedly connected to the center of the end face of the sliding inner plug 41, the cylinder 43 slides through the receiving cylinder 4 and squeezes the hydraulic oil in the receiving cylinder 4 to achieve the purpose of damping.

[0038] A fixing ring 44 is fixedly sleeved at the upper end of the cylinder 43, and a compression spring 45 is fixedly connected to the bottom of the fixing ring 44. The compression spring 45 is sleeved on the outside of the cylinder 43, and the lower end of the compression spring 45 is fixedly set on the inner wall of the outer damping slide tube 3. Through the elasticity of the compression spring 45 itself, the suspension chain 2 is prevented from being rigidly pulled.

[0039] In this embodiment, as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figures 5 to 10 As shown, the upper end of the fixed ring 44 is provided with an arc groove 441, and an electric telescopic rod 442 is hinged in the arc groove 441. One end of the electric telescopic rod 442 is hinged to a telescopic tube, and the upper end of the telescopic tube is fixedly connected to a dial 444. When the dial 444 is locked between the arc wedge rods 447 by the wedge-shaped dial 448, the fixed ring 44 can move up and down with the cylinder 43, and the dial 444 is movably sleeved on the cylinder 43. The upper end face of the dial 444 abuts against the limiting vertical rod 445 fixed on the cylinder 43, and the dial 444 is provided with a through slot 446 to accommodate the limiting vertical rod 445. When the cylinder 43 moves up and down in coordination with the fixed ring 44 to compress the compression spring 45, the limiting vertical rod 445 slides in the through slot 446 to avoid jamming.

[0040] Two wedge-shaped blocks 448 are fixedly connected to the dial 444, and the wedge-shaped blocks 448 abut against the annular groove 449 opened on the inner side of the outer damping slide tube 3. Two sets of longitudinally arranged multiple arc-shaped wedge rods 447 are fixedly connected in the annular groove 449, and one end of the multiple arc-shaped wedge rods 447 in the same vertical direction is fixedly connected to a stop rod 443.

[0041] In this embodiment, as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figures 5 to 10As shown, a rotating hollow tube 5 is rotatably connected to the upper end of the cylinder 43. Symmetrical notches 54 are provided on the rotating hollow tube 5, and a connecting shaft 51 is inserted between the rotating hollow tube 5 and the cylinder 43. Symmetrical extrusion grooves 52 are provided on the connecting shaft 51, and a deflecting plate 53 overlaps within the extrusion groove 52. The edges of the deflecting plate 53 are rounded. The deflecting plate 53 is hinged within the notch 54 of the rotating hollow tube 5, and a torsion spring is provided on the shaft of the deflecting plate 53 for resetting after deflection. The external damping slide tube 3 has a vertical groove. When the deflection plate 53 rotates horizontally and resets with the dial 444 in the deflection state, the locking groove 57 and the spring-loaded locking block 56 are initially engaged and locked. Then, the locking groove 57 continues to press the spring-loaded locking block 56 to compress and reinforce the lock. When the deflection plate 53 continues to rotate and is on the same vertical plane as the vertical groove, the locking is completed. This ensures that the end of the deflection plate 53 does not contact the inner wall of the external damping slide tube 3 when it moves up and down, thus reducing the wear of the end of the deflection plate 53.

[0042] A telescopic rod 55 is fixedly connected to the side of the rotating hollow tube 5. The bottom end of the telescopic rod 55 is fixedly connected to the dial 444. A spring-loaded locking block 56 is fixedly connected to the cylinder 43. The spring-loaded locking block 56 abuts against the locking groove 57 opened on the end face of the deflection plate 53. The spring-loaded locking block 56 is a spline spring telescopic rod structure. Its end is provided with a flat gear-shaped lock head that cooperates with the locking groove 57, which is adapted to the rotation locking function.

[0043] In this embodiment, as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figures 5 to 10 As shown, the docking shaft 51 extends to the bottom of the inner wall of the cylinder 43 and is hinged to two parallel rods 58. A plug 59 is hinged to the two parallel rods 58. The plug 59 passes through the side of the cylinder 43, slides through the inner plug 41, and extends into the throttling hole 42.

[0044] In this embodiment, as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figures 5 to 10 As shown, the side of the cylinder 43 is provided with an inner groove 46, and two cylinders 47 are fixedly connected in the inner groove 46. Parallel plates 412 are slidably connected to both cylinders 47. One end of the two parallel plates 412 located inside the cylinder 43 is hinged with a fastening sleeve 48, and the fastening sleeve 48 is slidably sleeved on the docking shaft 51. The side of the fastening sleeve 48 is threaded with a fastening bolt 49. By rotating the fastening bolt 49, it abuts against the docking shaft 51. The other end of the parallel plate 412 is hinged with a friction block 410.

[0045] In this embodiment, as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figures 5 to 10 As shown, the outer wall of the external damping slide tube 3 has a through groove 6, and the central axis of the through groove 6 is coaxial with the central axis of the fastening bolt 49. The size of the through groove 6 can be enlarged as needed.

[0046] In this embodiment, as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figures 5 to 10 As shown, the docking shaft 51 is provided with a flange for placing the fastening sleeve 48, ensuring that the height of the fastening sleeve 48 is consistent in the reset state. The docking shaft 51 is composed of two rotating shafts connected rotatably, and when the fastening sleeve 48 is connected to the lower rotating shaft of the docking shaft 51, the upper part of the docking shaft 51 rotates with the deflection plate 53, while its lower rotating shaft does not rotate.

[0047] In this embodiment, as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figures 5 to 10 As shown, a fixing ring plate 411 is fixedly connected to the lower end of the compression spring 45. The fixing ring plate 411 is horizontally fixed on the inner wall of the outer damping slide tube 3; and the fixing ring plate 411 is on the outside of the cylinder 43.

[0048] The method of use and advantages of this invention: The working process of this suspended conveying device for metal raw materials used in chemical production is as follows:

[0049] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figures 5 to 10 As shown,

[0050] I. Anti-sloshing and micro-vibration measures for powder / liquid metal raw materials based on their working principle.

[0051] Connection and initial adjustment: After connecting the raw material barrel through the two lifting devices 8, start the electric telescopic rod 442 to retract, pull the dial 444 to rotate counterclockwise, so that the wedge-shaped block 448 on the dial 444 is misaligned with the arc-shaped wedge rod 447 in the annular groove 449 on the inner wall of the outer damping slide tube 3, and release the initial limit.

[0052] Weight Matching and Buffer Setting: The weight of the raw material barrel is transmitted to the cylinder 43 through the receiving cylinder 4 and the sliding inner plug 41, causing the cylinder 43 to move downward within the outer damping slide tube 3, which in turn causes the fixed ring 44 to compress the compression spring 45. The compression amount of the compression spring 45 is directly related to the weight of the raw material barrel, thus achieving matching with the weight of the raw material. Subsequently, the electric telescopic rod 442 extends and resets, causing the wedge-shaped paddle 448 to rotate and reset, and engage with the arc-shaped wedge rod 447, so that the compression spring 45 maintains a compression length that matches the weight of the raw material, ensuring that the elastic buffering capacity is adapted to the load.

[0053] Hydraulic damping force adjustment: When the dial 444 rotates, the telescopic rod 55 drives the rotating hollow tube 5 to rotate synchronously, causing the locking groove 57 of the deflection plate 53 to separate from the spring-loaded locking block 56. During the downward movement of the cylinder 43, the rotating hollow tube 5 moves downward accordingly, and the end of the deflection plate 53 is deflected by the pressure of the upper end face of the outer damping slide tube 3, pushing the docking shaft 51 downward. This, in turn, drives the plug 59 to slide into the throttling orifice 42 of the sliding inner plug 41 through the parallel rod 58, reducing the channel area of ​​the throttling orifice 42. When the electric telescopic rod 442 is reset, the locking groove 57 and the spring-loaded locking block 56 are locked again, completing the damping force adjustment of the hydraulic damper (composed of cylinder 43, sliding inner plug 41, receiving cylinder 4, and hydraulic oil), so that it matches the weight of the raw materials. When the tank is full, the damping increases to prevent swaying, and when the tank is empty, the damping decreases to prevent sluggish start-up.

[0054] Vibration suppression: When the raw material barrel is bumped during the conveying process, the sliding inner plug 41 slides in the receiving cylinder 4, and generates viscous damping by squeezing the hydraulic oil, which directly suppresses the impact intensity and continuous vibration; at the same time, the cylinder 43 moves down to squeeze the compression spring 45 to generate a reverse elastic force, which helps to alleviate the impact. Under the dual action, the raw material barrel is prevented from shaking too much, and the problems of liquid sloshing, powder off-center loading and micro-vibration are solved.

[0055] II. Based on the working principle of bulk metal raw materials, prevention of rigid impact and residual vibration.

[0056] Friction damping activation: Using an external tool through the slot 6 of the outer damping slide tube 3 and the inner slot 46 of the cylinder 43, the fastening bolt 49 is rotated to contact the docking shaft 51, thus fixing the connection between the fastening sleeve 48 and the docking shaft 51. At this time, as the docking shaft 51 moves downward, it simultaneously drives the fastening sleeve 48 downward, causing the parallel plate 412 to slide and deflect along the cylinder 47, pushing the friction block 410 to contact the inner wall of the outer damping slide tube 3, increasing the sliding resistance of the cylinder 43, activating dry friction damping, and then the block raw material is hoisted and loaded into the can.

[0057] Impact and vibration mitigation: When rigid impacts occur during the loading or start-up / stop of bulk raw materials, the hydraulic damper (composed of cylinder 43, sliding inner plug 41, receiving cylinder 4, and hydraulic oil) slowly releases the impact energy through viscous damping, preventing the device from deforming due to instantaneous impact; the compression spring 45 assists in absorbing vibration and reducing the amplitude of the raw material tank; high-frequency, small-amplitude residual vibrations, such as the residual vibrations after a metal ingot hits the tank wall, are quickly dissipated through the dry friction between the friction block 410 and the inner wall of the outer damping slide tube 3, avoiding tank fatigue damage caused by resonance, and ultimately effectively suppressing the swaying of bulk raw materials.

[0058] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A suspended conveying device for metal raw materials used in chemical production, comprising a conveying track (1) and a sliding seat (7) connected to the track by a traction chain, characterized in that: The sliding seat (7) is connected to the external damping slide tube (3) via the suspension chain (2). The external damping slide tube (3) is axially slidably provided with a container (4) filled with hydraulic oil. The lower end of the container (4) is connected to the lifting device (8) and a safety anti-fall chain is provided between the two. The receiving cylinder (4) is slidably provided with a sliding inner plug (41) with a throttling hole (42). The center of the sliding inner plug (41) is fixedly connected to a cylinder (43). The cylinder (43) slides through the receiving cylinder (4) to squeeze the hydraulic oil to achieve damping. The upper end of the cylinder (43) is fixedly connected to a fixing ring (44), and the bottom of the fixing ring (44) is connected to a compression spring (45) on the outside of the cylinder (43). The lower end of the compression spring (45) is fixed to the inner wall of the outer damping slide tube (3) to buffer the rigid pull of the suspension chain (2) and assist in vibration reduction. The upper end of the fixed ring (44) is provided with an arc groove (441), and an electric telescopic rod (442) is hinged in the arc groove (441). The electric telescopic rod (442) is hinged to a dial (444) on the outside of the cylinder (43) through the other end of the telescopic tube. The dial (444) is provided with a through slot (446) for the sliding of the limiting vertical rod (445) to avoid jamming. The limiting vertical rod (445) is fixed on the cylinder (43). The dial (444) is fixedly connected to two wedge-shaped blocks (448). The wedge-shaped blocks (448) abut against the annular groove (449) inside the outer damping slide tube (3). The annular groove (449) is provided with two sets of longitudinal arc-shaped wedge rods (447) and a stop rod (443). The dial (444) is driven to rotate by the electric telescopic rod (442) to realize the misalignment / engagement of the wedge-shaped blocks (448) and the arc-shaped wedge rods (447) so as to adjust the compression amount of the compression spring (45) to match the weight of the raw material. The upper end of the cylinder (43) is rotatably connected to the hollow tube (5). The hollow tube (5) has a notch (54) and the cylinder (43) and the hollow tube (5) are connected by a connecting shaft (51). The connecting shaft (51) has a pressing groove (52). The deflection plate (53) hinged to the notch (54) is connected in the pressing groove (52). The rotating hollow tube (5) is connected to a telescopic rod (55) on its side. The bottom end of the telescopic rod (55) is fixed to a dial (444). A spring-loaded locking block (56) is fixed to the cylinder (43). The spring-loaded locking block (56) is engaged in the locking groove (57) of the deflection plate (53) to synchronously link the rotating hollow tube (5) and the dial (444) to realize the displacement control of the docking shaft (51).

2. The suspended conveying device for metal raw materials used in chemical production according to claim 1, characterized in that: The docking shaft (51) extends to the bottom of the inner wall of the cylinder (43) and is hinged to two parallel rods (58). The other end of the parallel rods (58) is hinged to a plug (59). The plug (59) passes through the side of the cylinder (43) and the sliding inner plug (41) and extends into the throttling hole (42). The docking shaft (51) moves down to drive the parallel rods (58) to deflect, thereby causing the plug (59) to reduce the channel area of ​​the throttling hole (42) to adapt to the damping force requirements of different raw material weights.

3. The suspended conveying device for metal raw materials used in chemical production according to claim 1, characterized in that: The cylinder (43) has an inner groove (46) on its side, and two cylinders (47) are provided in the inner groove (46). A parallel plate (412) is slidably connected on the cylinder (47). The inner end of the parallel plate (412) is hinged to the fastening sleeve (48) of the connecting shaft (51). The fastening sleeve (48) is threaded with a fastening bolt (49) on its side. A friction block (410) is hinged to the outer end of the parallel plate (412). The outer wall of the external damping slide tube (3) is provided with a through groove (6) coaxial with the fastening bolt (49). By rotating the fastening bolt (49), the docking shaft (51) is fixed, and the parallel plate (412) is deflected as the docking shaft (51) moves down, so that the friction block (410) abuts against the inner wall of the external damping slide tube (3), thereby increasing the sliding resistance of the cylinder (43) to dissipate the residual vibration of the blocky material.

4. The suspended conveying device for metal raw materials used in chemical production according to claim 3, characterized in that: The docking shaft (51) is provided with a flange for placing the fastening sleeve (48), and the docking shaft (51) is composed of two rotating shafts connected by rotation, ensuring that the lower shaft does not move when the upper shaft rotates, thus avoiding interference with the adjustment of the friction block (410).

5. The suspended conveying device for metal raw materials used in chemical production according to claim 1, characterized in that: The lower end of the compression spring (45) is connected to a fixed ring plate (411). The fixed ring plate (411) is horizontally fixed to the inner wall of the outer damping slide tube (3) and located on the outside of the cylinder (43) to stabilize the support structure of the compression spring (45).

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