Metal raw material hanging and conveying device based on chemical production

Abstract

The invention relates to the technical field of chemical metal raw material conveying, in particular to a metal raw material hanging and conveying device based on chemical production, which comprises a conveying track and a sliding seat connected on the track through a traction chain, and the sliding seat is connected with an outer damping sliding pipe through a hanging chain. According to the metal raw material hanging and conveying device based on chemical production, the device can be precisely matched according to the conveying requirements of metal raw materials in different forms such as powder, liquid and blocks, for powder or liquid metal, through cooperation of an adjustable hydraulic damper, a cylinder, a sliding inner plug, a containing cylinder and a compression spring, liquid sloshing leakage and powder unbalance loading caking are restrained; for blocky metal, rigid impact is slowly released by means of the hydraulic damper, residual vibration after impact is quickly dissipated through the friction block, fatigue damage to a tank body is avoided, multiple sets of equipment do not need to be arranged, the enterprise cost is reduced, and the plant space is saved.

Description

TECHNICAL FIELD

[0001] The present 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. BACKGROUND

[0002] In chemical production, the conveying of metal raw materials (such as metal powder catalyst, liquid metal intermediate, block metal ingot, etc.) is a key production link. Suspension conveying is one of the mainstream conveying methods because it can save ground space and adapt to multi-layer production layout. However, the existing metal raw material suspension conveying device for chemical production has the following core problems in actual application: 1. Poor vibration damping adaptability: The existing device mostly uses fixed damping structure or single spring damping, which cannot adjust the damping parameters according to the weight (such as full tank and empty tank) and form (such as liquid, powder, and block) of the metal raw material. When conveying liquid metal, the fixed damping cannot effectively suppress the center of gravity deviation caused by liquid sloshing, which easily leads to sealing leakage. When conveying powder metal, micro-vibration easily causes powder to be unevenly loaded and caked. When conveying block metal (such as metal ingot), the "rigid impact" during tank loading and conveying start-stop stages easily causes the device to deform, and the high-frequency residual vibration after impact easily causes tank body fatigue damage, shortening the service life of the equipment.

[0003] 2. Low compatibility of conveying multiple forms of raw materials The existing device is mostly designed for single-form metal raw materials. For example, a device suitable for liquid raw materials cannot meet the impact buffering requirements of block raw materials, and a device suitable for block raw materials cannot meet the micro-vibration suppression requirements of powder raw materials, resulting in the need to equip multiple sets of conveying equipment in chemical production, increasing the cost of equipment investment and site occupation.

[0004] In summary, considering the characteristics of various forms of metal raw materials and complex conveying conditions in chemical production, there is an urgent need for a suspension conveying device with weight self-adaptive damping and compatible conveying of multiple forms of raw materials to solve the problems of the existing technology and improve the safety and stability of metal raw material conveying. SUMMARY

[0005] The present 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. The sliding seat is connected to an outer damping sliding pipe through a suspension chain, the outer damping sliding pipe is provided with a containing cylinder filled with hydraulic oil and sliding axially, the containing cylinder is connected to a lifting device at the lower end and a safety anti-falling chain is arranged between the two; The sliding inner plug with a throttling hole is arranged in the accommodating cylinder, and a cylinder is fixed at the center of the sliding inner plug, which is inserted into the accommodating cylinder to extrude hydraulic oil to realize damping; A fixed ring is fixed on the upper end of the cylinder, and a compression spring is sleeved on the outer side of the cylinder at the bottom of the fixed ring, and the lower end of the compression spring is fixed in the inner wall of the outer damping sliding pipe to buffer the rigid pull of the hanging chain and assist damping; A fixed ring is fixed on the upper end of the cylinder, and a compression spring is sleeved on the outer side of the cylinder at the bottom of the fixed ring, and the lower end of the compression spring is fixed in the inner wall of the outer damping sliding pipe to buffer the rigid pull of the hanging chain and assist damping.

[0006] Preferably, an arc groove is arranged on the upper end of the fixed ring, and an electric telescopic rod is hinged in the arc groove, the electric telescopic rod is hinged on a dial outside the cylinder through a telescopic pipe at the other end, the dial is provided with a through slot for the sliding of a limiting vertical rod to avoid jamming, and the limiting vertical rod is fixed on the cylinder; The dial is fixed with two wedge-shaped blocks, the wedge-shaped blocks are abutted in the annular groove on the inner side of the outer damping sliding pipe, two groups of longitudinal arc-shaped wedge-shaped rods and stop rods are arranged in the annular groove, the dial is driven to rotate through the electric telescopic rod, the wedge-shaped blocks are dislocated / coupled with the arc-shaped wedge-shaped rods to adjust the compression amount of the compression spring to adapt to the weight of raw materials.

[0007] Preferably, a rotating hollow pipe is rotatably connected to the upper end of the cylinder, the rotating hollow pipe is provided with a notch, and a shaft rod is inserted into the cylinder and the interior of the rotating hollow pipe, the shaft rod is provided with an extrusion push groove, and a deflection plate is hinged on the notch in the extrusion push groove; The side of the rotating hollow pipe is connected with a telescopic rod, the bottom end of the telescopic rod is fixed with a dial, a spring abutting lock block is fixed on the cylinder, the spring abutting lock block is engaged in a lock groove of the deflection plate, and the spring abutting lock block is used for synchronously driving the rotating hollow pipe and the dial to realize displacement adjustment of the shaft rod.

[0008] Preferably, the shaft rod extends to the bottom of the inner wall of the cylinder, and is hinged with two parallel rods, the other end of the parallel rods is hinged with a plug, the plug extends to the throttling hole through the side of the cylinder and the sliding inner plug, the parallel rods are driven to deflect through the downward movement of the shaft rod, the plug reduces the passage area of the throttling hole, and the damping force demand of different raw material weights is adapted.

[0009] Optionally, the side of the cylinder is provided with an inserted inner groove, two cylinders are arranged in the inserted inner groove, parallel plates are slidably connected on the cylinders, the inner side end of the parallel plates is hinged on a fastening sleeve of the shaft rod, the side of the fastening sleeve is threadedly connected with a fastening bolt, and the outer side end of the parallel plates is hinged with a friction block; The outer wall of the outer damping sliding pipe is provided with a through groove coaxial with the fastening bolt, the shaft rod is fixed by rotating the fastening bolt, and the parallel plates are deflected by the downward movement of the shaft rod, so that the friction block abuts against the inner wall of the outer damping sliding pipe, the sliding resistance of the cylinder is enhanced to dissipate the residual vibration of the blocky raw material.

[0010] 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.

[0011] 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.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: 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.

[0013] 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.

[0014] 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

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional structural diagram of the external damping slide tube and the receiving cylinder of the present invention; Figure 3 This is a three-dimensional cross-sectional view of the external damping slide tube of the present invention; Figure 4 This is a three-dimensional unfolded structural diagram of the external damping slide tube and the receiving cylinder of the present invention; Figure 5 For the present invention Figure 4 Enlarged view of the structure at point A in the middle; Figure 6This is a three-dimensional cross-sectional view of the mating shaft of the present invention; 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; Figure 8 This is a three-dimensional cross-sectional view of the housing cylinder of the present invention; Figure 9 This is a three-dimensional cross-section of the housing cylinder and sliding inner plug of the present invention. Figure 1 ; Figure 10 This is a three-dimensional cross-section of the housing cylinder and sliding inner plug of the present invention. Figure 2 .

[0016] 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

[0017] 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.

[0018] 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. 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.

[0019] 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.

[0020] 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.

[0021] 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.

[0022] 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.

[0023] 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.

[0024] 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.

[0025] 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.

[0026] 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.

[0027] 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.

[0028] 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: like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figures 5 to 10 Figure 1 Figure 2 Figure 3 Figure 4 Figures 5 to 10 As shown, I. Anti-sloshing and micro-vibration measures for powder / liquid metal raw materials based on their working principle. 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.

[0029] 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.

[0030] 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.

[0031] 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.

[0032] II. Based on the working principle of bulk metal raw materials, prevention of rigid impact and residual vibration. 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.

[0033] 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.

[0034] 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.

2. The suspended conveying device for metal raw materials used in chemical production according to claim 1, characterized in that: 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.

3. The suspended conveying device for metal raw materials used in chemical production according to claim 1, characterized in that: 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).

4. The suspended conveying device for metal raw materials used in chemical production according to claim 3, 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 parallel rods (58) are deflected by the downward movement of the docking shaft (51), which drives 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.

5. The suspended conveying device for metal raw materials used in chemical production according to claim 3, 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.

6. The suspended conveying device for metal raw materials used in chemical production according to claim 5, 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).

7. 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 fixing ring plate (411), which 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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