Method for tipping and stably discharging slag in leaching tank

Abstract

The invention relates to a leaching tank tipping stable slag discharging method, a leaching tank tipping stable slag discharging device is used, and the leaching tank tipping stable slag discharging device comprises a fixing structure, a latch hook device, a rack cylinder, tipping equipment, a frequency conversion vibration device, a hydraulic system and a terminal buffer. A proportional reversing valve and a hydraulic control one-way valve of a hydraulic system and a displacement sensor on a rack cylinder are adopted to control the rack cylinder, and a latch hook device, a frequency conversion vibration device and a terminal buffer are adopted to control the tipping equipment, so that the tipping equipment is stable in tipping, uniform in slag discharging and hooked to a fixed structure. According to the method disclosed by the invention, the phenomena of equipment damage and personal safety injury caused by tipping slag unloading of the leaching tank are avoided, so that key tipping production equipment of the leaching tank can normally, efficiently and stably run.

Description

Technical Field

[0001] The invention relates to the technical field of metallurgy, in particular to a method for tilting and stably unloading slag from a leaching tank. Background Art

[0002] In the intermittent leaching process of three-immersion and four-washing in the vanadium trioxide leaching process, the waste slag and returned slag after the qualified liquid is generated by the tank leaching need to be poured into the reversible large belt below through the tipping of the key equipment leaching tank. The reversible large belt runs in both directions to pour the slag, return the slag to the roasting furnace and send the waste slag out in a closed loop operation. The stable operation of the leaching tank is directly related to the normal production of the main line of the entire roasting system. In the past, in order to unload the slag smoothly, when the leaching tank was tipped to unload the slag, the operator used the inertia of the tipping impact of the leaching tank to unload the slag downward. The tipping impact of the leaching tank was large and the stability was poor. The elastic vibration impact of the leaching tank was obvious during the tipping process, which caused great damage to the rack cylinder, fixed bearing seat and leaching tank drive shaft of the tank leaching operation equipment. The unstable tipping slag unloading of the leaching tank not only caused the leaching tank to unload too much and unevenly, but also caused the slag to frequently crush the reversible large belt below, affecting production. In addition, elastic vibration impact often causes major equipment accidents such as cracking and explosion of the rack cylinder body, overturning of the foundation of the fixed bearing seat, and fracture of the leaching tank drive shaft. The occurrence of equipment accidents such as explosion, overturning, and fracture also poses a great threat to the personal safety of on-site operators.

[0003] CN 104454771 A discloses an electro-hydraulic angle controller with precise angle control. The rack cylinder mainly comprises a cylinder barrel, a piston rod, pistons at both ends of the piston rod, and glands at both ends of the cylinder barrel. The piston rod is provided with teeth, and the gear meshes with the teeth of the piston rod. A magnetostrictive displacement sensor is inserted on one of the two glands, and a magnetic ring is connected to the piston near the gland. The detection end of the magnetostrictive displacement sensor is inserted in the magnetic ring. The linear displacement analog signal provided by the magnetostrictive displacement sensor is converted into the gear swing angle through PLC control. The prior art proposes to use the magnetostrictive displacement sensor to accurately control the gear swing angle.

[0004] CN 108559811 B discloses an environmentally friendly metallurgical slag cooling treatment system and process, wherein a slag pot tilting machine comprises a tilting mechanism vertical plate and a slag pot locking mechanism; the slag pot locking mechanism comprises a fixed large gear, a small gear and a locking pin, the fixed large gear is fixedly mounted on the inner side of the bearing seat of the slag pot tilting machine, two small gears are respectively hinged to the tilting mechanism vertical plate through a rotating pair, and are respectively meshed with the fixed large gear and the locking pin, and the two sides of the locking pin are respectively connected to the tilting mechanism vertical plate through a linear pair, and the slag pot is locked naturally without a power mechanism. The prior art proposes to use a fixed large gear, two small gears and a locking pin to achieve the locking of the slag pot.

[0005] CN 111518971 B discloses a high-temperature metallurgical slag cleaning, heat extraction, dry processing system and process, wherein the slag pot tilting machine is composed of a tilting machine mounting frame, a tilting machine hydraulic motor, a slag pot frame and a spring clamp; the two ends of the main shaft of the slag pot frame are fixed to the tilting machine mounting frame through a bearing seat, and one end is connected to the driving shaft of the tilting machine hydraulic motor, the tilting machine mounting frame is respectively placed on both sides of the annular rotating platform, and the spring clamp is used to fix the slag pot in the slag pot frame. The prior art proposes to adjust the slag pot tilting speed and tilting angle arbitrarily through the stepless speed regulation of the tilting machine hydraulic motor.

[0006] At present, the tipping devices and methods of metallurgical or chemical enterprises in the industry are relatively simple, mostly mechanical, but the existing technology does not provide a suitable method and device to improve the equipment damage and personal injury caused by the impact of tipping and unloading slag in the leaching tank.

[0007] Based on this, there is room for improvement in tipping and unloading slag. Summary of the invention

[0008] In view of this, the present invention provides a method for tilting a leaching tank to stably unload slag, which overcomes the unfavorable phenomenon that the leaching tank relies on the inertia of downward impact to unload slag during the existing tilting process of the leaching tank, the slag unloading elastic impact vibration is large, the slag unloading amount is unstable, and equipment damage and personal injury frequently occur during the tilting process.

[0009] In order to achieve the above object, the technical solution provided by the present invention is: A method for tilting a leaching tank to stably unload slag, using a device for tilting a leaching tank to stably unload slag, the device for tilting a leaching tank to stably unload slag comprises a fixed structure, a locking hook, a rack cylinder, a tilting device, a variable frequency vibrator, a hydraulic system and a terminal buffer, the locking hook, the rack cylinder and the terminal buffer are fixedly arranged on the fixed structure, the tilting device is rotatably arranged on the fixed structure through the rack cylinder, the locking hook is releasably fixedly connected to the tilting device, the variable frequency vibrator is arranged on the tilting device, the terminal buffer is used to reduce the impact of the tilting device when the tilting device tilts, the rack cylinder is connected to the hydraulic system and is controlled by the hydraulic system; a gear is arranged on the rack cylinder A displacement sensor is provided for accurately locating the movement of the rack cylinder; a rack cylinder stroke limit is provided on the rack cylinder, and the rack cylinder stroke limit is configured to stop the rotation of the rotating touch block when it touches the rotating touch block of the rotating tilting device; the hydraulic system includes a proportional reversing valve, and the proportional reversing valve accurately controls the movement of the rack cylinder by controlling the stability of the oil circuit of the rack cylinder. This method controls the rack cylinder by using the proportional reversing valve and hydraulically controlled one-way valve of the hydraulic system and the displacement sensor on the rack cylinder, and uses a locking hook, a variable frequency vibrator and a terminal buffer to control the tilting device, so that the tilting device can be stably tilted, the slag can be discharged evenly and it can be hooked to a fixed structure.

[0010] In some embodiments, the method for tipping and discharging slag in a leaching tank comprises the following steps: Step 1: Pull open the locking hook to release the tilting device loaded with slag from the fixed structure, and the tilting device slowly and steadily flips down under the restriction of the rack cylinder; Step 2: When the tilting device is tilting downward, the tilting angle of the tilting device is accurately controlled by the proportional reversing valve, the hydraulically controlled one-way valve and the displacement sensor, and the tilting device is stably stopped. When the tilting device stops at different tilting angles, the vibration frequency of the variable frequency vibrator is adjusted to vibrate the tilting device to unload the slag; Step 3: When the tipping device is tipped into place, the tipping device touches and engages with the terminal buffer, and the tipping device stays stably to complete stable slag unloading; Step 4: Reset the tilting device and hook the tilting device to the fixed structure through a locking hook; Step 5: After the tipping device is fully loaded with slag, repeat steps 1 to 4.

[0011] In some embodiments, the tilting device slowly and steadily tilts downward under the constraint of the rack cylinder, including: accurately controlling the displacement of the rack of the rack cylinder by accurately controlling the displacement of the piston of the rack cylinder through a displacement sensor, thereby accurately controlling the tilting of the tilting device.

[0012] In some embodiments, precisely controlling the tilting of the tilting device includes precisely controlling the rotation of a leaching tank of the tilting device.

[0013] In some embodiments, in step 2, the tilting angle of the tilting device is accurately controlled and the tilting device is stably stopped by a proportional reversing valve, a hydraulically controlled one-way valve and a displacement sensor, including: accurately controlling the tilting of the tilting device by the displacement sensor, controlling the oil circuit of the rack cylinder by the proportional reversing valve to accurately control the movement of the rack cylinder to control the tilting angle of the tilting device, and locking the rack cylinder by using the hydraulically controlled one-way valve and the proportional reversing valve to control the locking of the tilting device, so that the tilting device can be stably stopped at different tilting angles.

[0014] In some embodiments, in step 2, the vibration frequency of the variable frequency vibrator is adjusted to vibrate the tilting device to unload slag, including: using the variable frequency vibrator to vibrate the tilting device with a vibration frequency matching the tilting angle of the tilting device, so that the slag in the tilting device is vibrated and unloaded.

[0015] In some embodiments, in step 2, when the tilting device stays at different tilting angles, the rack cylinder is damped by a rack cylinder damper provided on the rack cylinder.

[0016] In some embodiments, in step 3, the tilting device tilts into position, including: a second rack cylinder stroke limit set on the rack cylinder touches a rotating contact block set on the tilting device.

[0017] In some embodiments, in step 3, the tipping device is tipped into position, including: a mechanical stopper on the tipping device is brought into contact with a terminal buffer on the fixed structure.

[0018] In some embodiments, in step 4, the tilting device is reset, including: an operator pushes the tilting device, and then the tilting device automatically and smoothly rises and resets under the constraint of the rack cylinder.

[0019] Beneficial effects of the present invention: The method for tilting and stably unloading slag in a leaching tank of the present invention has the following advantages: when the leaching tank of the tilting equipment fully loaded with slag material is tilted to unload slag, the fixed structure of the tilting equipment is safe and firm, the amount of tilting unloading slag is stable and uniform, the elastic impact of the tilting unloading slag is small, and the leaching tank can stably stay at any position during the tilting process of unloading slag, thereby preventing equipment damage and personal safety injury caused by the tilting of the leaching tank to unload slag, and ensuring that the key production equipment of the leaching tank tilting can operate normally, efficiently and stably. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For ordinary technicians in this field, other embodiments can be obtained based on these drawings without paying creative work.

[0021] Figure 1 A schematic diagram of a device for tilting and stably discharging slag from a leaching tank provided in one embodiment of the present invention; Figure 2 A schematic diagram of the hydraulic principle for improving the tilting of a device for tilting and stably unloading slag in a leaching tank provided by one embodiment of the present invention; Figure 3 A flow chart of a method for tilting and stably unloading slag in a leaching tank provided in one embodiment of the present invention. DETAILED DESCRIPTION

[0022] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the embodiments of the present invention are further described in detail below in combination with specific embodiments and with reference to the accompanying drawings.

[0023] It should be noted that all expressions using "first" and "second" in the embodiments of the present invention are for distinguishing two non-identical entities with the same name or non-identical parameters. It can be seen that "first" and "second" are only for the convenience of expression and should not be understood as limitations on the embodiments of the present invention. The subsequent embodiments will not explain this one by one.

[0024] The present invention provides a device for tilting and stably unloading slag in a leaching tank, such as Figure 1As shown, it includes a fixed structure, a locking hook 3, a rack cylinder 4, a tilting device, a variable frequency vibrator 9, a hydraulic system and a terminal buffer 14. The locking hook 3, the rack cylinder 4 and the terminal buffer 14 are fixedly arranged on the fixed structure. The tilting device is rotatably arranged on the fixed structure through the rack cylinder 4. The locking hook 3 is releasably fixedly connected to the tilting device. The variable frequency vibrator 9 is arranged on the tilting device. The terminal buffer 14 is used to reduce the impact of the tilting device when the tilting device tilts. The rack cylinder 4 is connected to the hydraulic system and is controlled by the hydraulic system.

[0025] In some embodiments, the fixed structure includes a column 1 and an I-beam foundation 6, the I-beam foundation 6 is horizontally arranged, and the column 1 is fixedly arranged on the I-beam foundation 6 and is perpendicular to the I-beam foundation 6. The lock hook 3 is fixedly arranged on one side of the column 1, and the length direction of the lock hook 3 is parallel to the length direction of the I-beam foundation 6. The rack cylinder 4 is fixedly arranged on the I-beam foundation 6 adjacent to the lock hook 3, and the terminal buffer 14 is arranged on the I-beam foundation 6 and is away from the lock hook 3 and the rack cylinder 4.

[0026] In some embodiments, the fixed structure includes two columns 1 and two I-beam foundations 6, the two I-beam foundations 6 are arranged horizontally and aligned in parallel, one column 1 is fixedly arranged on each I-beam foundation 6, and the two columns 1 are respectively perpendicular to the corresponding I-beam foundations 6. The lock hook 3 is fixedly arranged on one side of a column 1, and the length direction of the lock hook 3 is parallel to the length direction of the I-beam foundation 6 corresponding to the column 1. The rack cylinder 4 is fixedly arranged on the corresponding I-beam foundation 6 adjacent to the lock hook 3. Terminal buffers 14 are respectively arranged on the two I-beam foundations 6.

[0027] In some embodiments, the base of the rack cylinder 4 is fixed to the I-beam foundation 6 by the rack cylinder fixing bolts 13 and the reinforcing U-shaped clamps 5, so that the rack cylinder 4 is firmly fixed to the I-beam foundation 6. The rack cylinder fixing bolts 13 and the reinforcing U-shaped clamps 5 improve the stability of the rack cylinder 4, so that when the tilting device rotates through the rack cylinder 4, the firmness of the rack cylinder 4 relative to the I-beam foundation 6 is improved, avoiding the impact of the tilting device when it tilts on the rack cylinder 4.

[0028] In some embodiments, the tilting device includes a leaching tank 7, a leaching tank transmission shaft 8 and a mechanical stopper 2, wherein the mechanical stopper 2 is arranged outside the leaching tank 7, the leaching tank transmission shaft 8 is centrally arranged on the leaching tank 7 and fixedly connected to the leaching tank 7, and one end of the leaching tank transmission shaft 8 is fixedly connected to the central axis of the rack cylinder 4, so that the rotation of the central axis of the rack cylinder 4 drives the leaching tank transmission shaft 8 to rotate, thereby driving the leaching tank 7 to rotate. Similarly, when the central axis of the rack cylinder 4 stops rotating, the leaching tank transmission shaft 8 stops rotating, and the leaching tank 7 also stops rotating.

[0029] In some embodiments, Figure 1 As shown, the leaching tank 7 includes a bottom wall and four side walls connected in sequence around the bottom wall, the four side walls are the first side wall 17, the second side wall 18, the third side wall 19 and the fourth side wall in sequence, wherein the first side wall 17 faces the rack cylinder 4, and a locking structure 20 is arranged on the first side wall 17, the locking structure 20 matches the locking hook 3, and the locking hook 3 can be hooked with the locking structure 20 or separated from the locking structure 20. When the locking hook 3 is hooked with the locking structure 20, the leaching tank 7 is perpendicular to the I-beam foundation 6 and is stationary relative to the rack cylinder 4. The leaching tank 7 is firmly hooked to the column 1 through the locking hook 3. The locking hook 3 is used as a safety device to hook the leaching tank 7 to the column 1 before the leaching tank 7 is full of slag and has not tipped over, thereby preventing the leaching tank 7 from tipping over accidentally due to misoperation.

[0030] In some embodiments, the mechanical stopper 2 is disposed on the first side wall 17 of the leaching tank 7. When the leaching tank 7 is tipped over, the mechanical stopper 2 contacts and engages with the terminal buffer 14, thereby reducing the downward impact of the leaching tank 7 and allowing the leaching tank 7 to stay stably.

[0031] In some embodiments, the variable frequency vibrator 9 is arranged on the leaching tank 7, and the variable frequency vibrator 9 has different vibration frequencies. When the leaching tank 7 stays at different tilting angles, the leaching tank 7 can be vibrated by the variable frequency vibrator 9 using a vibration frequency matching the tilting angle of the leaching tank 7. The method of adjusting the different vibration frequencies of the variable frequency vibrator 9 to vibrate the leaching tank 7 for slag unloading ensures the uniformity and stability of the slag unloading of the leaching tank 7, and avoids the phenomenon that the slag unloading amount of the leaching tank 7 is too large and uneven, and the slag frequently crushes the reversible large belt below to affect production. During the tilting and unloading process of the leaching tank 7, the vibration frequency of the variable frequency vibrator 9 changes from large to small, that is, the vibration frequency of the variable frequency vibrator 9 decreases as the tilting degree of the leaching tank 7 increases, so that the slag in the leaching tank 7 is evenly and stably vibrated and flipped down to the reversible large belt below, avoiding the phenomenon that the slag elastic impact vibration is large and the slag unloading amount is unstable during the tilting and unloading process of the existing leaching tank 7. The variable frequency vibrator 9 improves the existing inertial feeding of the leaching tank 7 into vibrating feeding, thereby increasing the safety factor of tipping feeding of the leaching tank 7 .

[0032] In some embodiments, the variable frequency vibrator 9 is disposed outside the second side wall 18 of the leaching tank 7. When the leaching tank 7 tilts downward to unload the slag, the variable frequency vibrator 9 vibrates the second side wall 18, so that the slag slides down on the vibrating second side wall 18 in a vibrating manner, thereby improving the uniformity and stability of the slag on the reversible large belt that tilts down to the bottom of the leaching tank 7.

[0033] In some embodiments, the tilting device includes a rotating touch block 10, which is arranged on the leaching tank drive shaft 8. The rotating touch block 10 is fixed to the end of one end of the leaching tank drive shaft 8 that is fixedly connected to the central axis of the rack cylinder 4, and the rotating touch block 10 rotates with the rotation of the leaching tank drive shaft 8.

[0034] In some embodiments, one end of the rotating touch block 10 is disposed at the end center of the leaching tank transmission shaft 8, and the other end is located outside the end of the leaching tank transmission shaft 8. For example, the rotating touch block 10 may be in a pointer shape, a fan shape, or a triangle shape.

[0035] In some embodiments, a displacement sensor 21 is provided on the rack cylinder 4. Figure 2 As shown, the displacement sensor 21 is arranged on one side of the rack cylinder 4, and is used to accurately locate the movement of the rack cylinder 4. The design of the rack cylinder 4 and the displacement sensor 21 mainly ensures that the piston of the rack cylinder 4 can be accurately displaced, reduces the operation impact caused by the excessive displacement of the rack of the rack cylinder 4, and prolongs the service life of the rack cylinder 4. Since the rack displacement of the rack cylinder 4 is related to the impact of the leaching tank 7 and the mass of the leaching tank 7 is large, the greater the rack displacement, the greater the impact of the leaching tank 7. When the rack displacement can be accurately controlled, the rack displacement can be reduced, thereby reducing the impact of the leaching tank 7.

[0036] In some embodiments, a rack cylinder damper 11 is provided on the rack cylinder 4, and the rack cylinder damper 11 is used to damp the rack cylinder 4 and reduce the buffering of the leaching tank 7. The rack cylinder damper 11 is arranged on the end surface of the rack cylinder 4 corresponding to the piston of the rack cylinder 4. When the leaching tank 7 stops at any position of the tilting, the oil circuit supplied to the rack cylinder 4 stops, and the piston of the rack cylinder 4 continues to move due to inertia. The rack cylinder damper 11 then limits the movement of the piston to prevent the piston from impacting the end cover of the rack cylinder 4 due to inertia when the rack cylinder 4 stops moving, maintains the buffering of the rack cylinder 4, and further ensures the stability of the rack cylinder 4. Therefore, during the downward tipping process of the leaching tank 7, when the leaching tank 7 stops at any position angle of the tilting, the rack cylinder damper 11 can play a buffering and stabilizing role on the rack cylinder 4.

[0037] In some embodiments, a rack cylinder stroke limit 12 is provided on the rack cylinder 4, and the rack cylinder stroke limit 12 is provided adjacent to the leaching tank transmission shaft 8 and is configured to stop the rotation of the rotating touch block 10 when it touches the rotating touch block 10 of the rotating tilting device. When the rotating touch block 10 touches the rack cylinder stroke limit 12, the rack cylinder stroke limit 12 transmits an electrical signal indicating that the rotating touch block 10 has reached a position to the hydraulic system, and the hydraulic system controls the oil circuit supplied to the rack cylinder 4 to stop working, so that the rack cylinder 4 stops working, thereby keeping the leaching tank 7 stationary. In some embodiments, the rack cylinder stroke limit 12 can be a sensor.

[0038] In some embodiments, there are two rack cylinder stroke limits 12, namely, a first rack cylinder stroke limit and a second rack cylinder stroke limit, which are arranged on both sides of the rotating touch block 10, and are used to limit the rotating touch block 10 to the first position, the second position, and between the first position and the second position. When the rotating touch block 10 is in the first position, the rotating touch block 10 touches the first rack cylinder stroke limit, the leaching tank 7 is close to the column 1, and the first rack cylinder stroke limit prevents the leaching tank 7 from colliding with the column 1. When the rotating touch block 10 is in the second position, the rotating touch block 10 touches the second rack cylinder stroke limit, the leaching tank 7 is in a tilting position state and the leaching tank 7 stops tilting, at which time the mechanical stopper 2 on the leaching tank 7 touches and combines with the terminal buffer 14, and the second rack cylinder stroke limit controls the leaching tank 7 to tilt into position.

[0039] In some embodiments, the terminal buffer 14 can be a rubber block or a spring. The terminal buffer 14 has a spring buffering function. When the leaching tank 7 is tilted into position, the terminal buffer 14 and the mechanical stopper 2 are in contact with each other to prevent the leaching tank 7 from impacting and deforming the I-beam foundation 6, reduce the impact of the leaching tank 7 in position, and make the leaching tank 7 stay in position stably.

[0040] In some embodiments, Figure 2 As shown, the hydraulic system includes a proportional reversing valve 15, which is a control element of the hydraulic system. The proportional reversing valve 15 replaces the ordinary electromagnetic directional valve to avoid the defects of the ordinary electromagnetic directional valve, which has a relatively large hydraulic shock and is prone to more shocks and the resulting unstable factors. The proportional reversing valve 15 uses the opening of the continuous and precise control valve to achieve the purpose of controlling the stability of the oil circuit of the rack cylinder 4, and has higher precision than the ordinary electromagnetic directional valve. The proportional reversing valve 15 accurately controls the action of the rack cylinder 4 by controlling the stability of the oil circuit of the rack cylinder 4.

[0041] In some embodiments, the hydraulic system includes a hydraulically controlled one-way valve 16, which is used in conjunction with the proportional reversing valve 15. The hydraulically controlled one-way valve 16 has the function of safely locking the rack cylinder 4. In the event of a power outage or oil circuit rupture, the hydraulically controlled one-way valve 16 is used to lock the entire oil circuit, thereby locking the rack cylinder 4 at any angle, and further locking the leaching tank 7 at any position to prevent the leaching tank 7 from suddenly tipping over. The design of the hydraulically controlled one-way valve 16 improves the stability of the rack cylinder 4, and further improves the tipping stability of the leaching tank 7.

[0042] In some embodiments, the locking hook device 3 includes a spring and a hook, and the spring is connected to the hook and acts as a spring on the hook. After the leaching tank 7 automatically returns to its original position, the hook of the locking hook device 3 automatically hooks the locking structure 20 on the leaching tank 7 under the action of the spring. That is, when the leaching tank 7 is perpendicular to the I-beam foundation 6, the locking hook device 3 automatically hooks the locking structure 20 on the leaching tank 7 to prevent the leaching tank 7 from tipping downward due to misoperation, and the locking hook device 3 plays a role in safety protection for the leaching tank 7. When the leaching tank 7 is about to tip over, the hook of the locking hook device 3 can be manually pulled out to separate the hook from the locking structure 20, thereby releasing the leaching tank 7.

[0043] In some embodiments, the device for tilting and stably unloading slag in a leaching tank provided by the present invention comprises two columns 1, two I-beam foundations 6, a lock hook 3, a rack cylinder 4, a variable frequency vibrator 9, a leaching tank 7, a leaching tank transmission shaft 8, two terminal buffers 14 and a hydraulic system, wherein the two columns 1 are respectively vertically fixedly connected with the two I-beam foundations 6, a lock hook 3 is arranged on one column 1, and the rack cylinder 4 is fixed on the I-beam foundation 6 perpendicular to the column 1 by a rack cylinder fixing bolt 13 and a reinforcing U-shaped clip 5. A bearing seat (not shown) is arranged on the other I-beam foundation 6. The rack cylinder 4 is provided with a displacement sensor 21, two rack cylinder dampers 11, and two rack cylinder stroke limits 12. A locking structure 20 and a mechanical stopper 2 are provided on the first side wall 17 of the leaching tank 7. The variable frequency vibrator 9 is provided on the second side wall 18 of the leaching tank 7. A mechanical stopper 2 is provided on the third side wall 19 of the leaching tank 7. The leaching tank transmission shaft 8 is fixedly provided on the leaching tank 7 and one end is fixedly connected to the central axis of the rack cylinder 4. The other end of the leaching tank transmission shaft 8 is rotatably provided on the bearing seat. A rotating touch block 10 is fixed on the end of the leaching tank transmission shaft 8 that is fixedly connected to the central axis of the rack cylinder 4. The rotating touch block 10 is provided between the two rack cylinder stroke limits 12. A terminal buffer 14 is provided on each of the two I-beam foundations 6, and the two terminal buffers 14 correspond to the two mechanical stops 2 respectively. The proportional reversing valve 15 and the hydraulically controlled one-way valve 16 of the hydraulic system are used in conjunction with the rack cylinder 4.

[0044] In some embodiments, the device for tilting and stably unloading slag in the leaching tank provided by the present invention, when the tilting device is in a normal state without tilting, the tilting device is hooked to the column 1 through the locking hook 3. When the tilting device is in a state of being tilted in place, the tilting device is unlocked from the locking hook 3 and the tilting device is contacted and combined with the terminal buffer 14. When the tilting device tilts, the tilting angle of the tilting device is controlled by the rack cylinder 4.

[0045] The present invention provides a method for stably unloading slag by tilting a leaching tank, using a device for stably unloading slag by tilting a leaching tank, controlling the rack cylinder 4 by adopting a proportional reversing valve 15 and a hydraulically controlled one-way valve 16 of a hydraulic system and a displacement sensor 21 on the rack cylinder 4, and controlling the tilting device by adopting a locking hook 3, a variable frequency vibrator 9 and a terminal buffer 14, so that the tilting device can be stably tilted, the slag can be unloaded evenly, and the tilting device can be hooked to a fixed structure.

[0046] The method for tilting and stably unloading slag in a leaching tank of the present invention is as follows: Figure 3 As shown, the following steps are included: Step 1: Pull open the locking hook 3 to release the tilting device loaded with slag from the fixed structure, and the tilting device slowly and steadily flips downward under the control of the rack cylinder 4; Step 2: When the tilting device is tilted downward, the tilting angle of the tilting device is accurately controlled by the proportional reversing valve 15, the hydraulically controlled one-way valve 16 and the displacement sensor 21, and the tilting device is stably stopped. When the tilting device stops at different tilting angles, the vibration frequency of the variable frequency vibrator 9 is adjusted to vibrate the tilting device to unload the slag; Step 3: When the tipping device is tipped into place, the tipping device touches and engages with the terminal buffer 14, and the tipping device stays stably to complete stable slag unloading; Step 4, resetting the tilting device and hooking the tilting device to the fixed structure through the locking hook 3; Step 5: After the tipping device is fully loaded with slag, repeat the above steps 1 to 4.

[0047] In some embodiments, in step 1, the tilting device slowly and steadily tilts downward under the constraint of the rack cylinder 4, including: accurately controlling the displacement of the piston of the rack cylinder 4 by the displacement sensor 21 to accurately control the displacement of the rack of the rack cylinder 4, thereby accurately controlling the tilting of the tilting device.

[0048] In some embodiments, in step 1, precisely controlling the tilting of the tilting device includes precisely controlling the rotation of the leaching tank 7 of the tilting device.

[0049] In some embodiments, in step 2, the tilting angle of the tilting device is accurately controlled and the tilting device is stably stopped by the proportional reversing valve 15, the hydraulically controlled one-way valve 16 and the displacement sensor 21, including: accurately controlling the tilting of the tilting device by the displacement sensor 21, controlling the oil circuit of the rack cylinder 4 by the proportional reversing valve 15 to accurately control the movement of the rack cylinder 4 to control the tilting angle of the tilting device, and locking the rack cylinder 4 by using the hydraulically controlled one-way valve 16 in conjunction with the proportional reversing valve 15 to control the locking of the tilting device, so that the tilting device can be stably stopped at different tilting angles.

[0050] In some embodiments, in step 2, the vibration frequency of the variable frequency vibrator 9 is adjusted to vibrate the tilting device to unload slag, including: using the variable frequency vibrator 9 to vibrate the tilting device with a vibration frequency matching the tilting angle of the tilting device, so that the slag in the tilting device is vibrated and discharged.

[0051] In some embodiments, in step 2, when the tilting device stays at different tilting angles, the rack cylinder 4 is damped by the rack cylinder damper 11 provided on the rack cylinder 4.

[0052] In some embodiments, in step 3, the tilting device tilts into place, including: a second rack cylinder stroke limit provided on the rack cylinder 4 touches a rotating contact block 10 provided on the tilting device.

[0053] In some embodiments, in step 3, the tipping device is tipped into position, including: a mechanical stopper 2 on the tipping device is brought into contact with a terminal buffer 14 on the fixed structure.

[0054] In some embodiments, in step 4, the tilting device is reset, including: an operator pushes the tilting device, and then the tilting device automatically and smoothly rises and resets under the restriction of the rack cylinder 4.

[0055] The device and method for the stable slag unloading of the leaching tank of the present invention ensure that the leaching tank 7 of the tilting equipment does not utilize the inertial impact of the existing leaching tank 7 to unload the slag during the tilting and unloading process, but rather combines the optimized mechanical buffer device of the leaching tank 7 with the variable frequency vibration unloading and the displacement sensor 21, the proportional reversing valve 15 of the hydraulic system and the hydraulically controlled one-way valve 16 to control the rack cylinder 4. During the tilting and unloading process of the leaching tank 7, the fixed structure of the leaching tank 7 is ensured to be stable, and the leaching tank 7 can be ensured to stay stably at any tilting angle position and reduce the impact when tilting and unloading the leaching tank 7, and the elastic vibration impact of the leaching tank 7 when tilting down is small, the amount of slag unloaded downward in the tank is uniform, and the slag unloading is smooth. In addition, the device and method for the stable slag unloading of the leaching tank not only plays a good protective role in the unloading of the leaching tank 7, but also plays a role in protecting the personal safety of the on-site operators, ensuring the stable and efficient operation of the key tilting equipment of the enterprise.

[0056] Compared with the traditional methods and facilities of leaching tanks that rely on impact inertia to tip over and unload slag, which is neither stable nor safe, the device and method for tipping and stably unloading slag of the leaching tank of the present invention have the following beneficial effects: the mechanical device and the hydraulic system are reasonably designed, the concept is novel, the installation is simple, the tipping equipment is stable and durable, the impact of tipping and unloading slag is small, the belt receives the material evenly, the on-site operation is safe, and the maintenance of the whole device is convenient and quick, etc., which not only eliminates the equipment damage and personal injury caused by the impact of tipping and unloading slag of the leaching tank 7, but also effectively improves the tipping stability and unloading uniformity of the leaching tank, and ensures the stable operation of the tipping and unloading of the leaching tank 7 in the leaching process of the enterprise from a technical perspective, and provides a feasible method and equipment hardware guarantee for the efficient, stable and accurate tipping and unloading of slag of the key tipping equipment of the enterprise, and can be widely promoted to various tanks, buckets and tank facilities of various enterprises at home and abroad that need stable tipping and unloading, and has feasible promotion value in the same industry.

[0057] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0058] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the attached claims.

Claims

1. A method for tipping and stably unloading slag in a leaching tank, It is characterized in that A device for stabilizing slag unloading by tilting the leaching tank, the device comprising a fixed structure, a locking hook, a rack cylinder, a tilting device, a variable frequency vibrator, a hydraulic system and a terminal buffer, the locking hook, the rack cylinder and the terminal buffer are fixedly arranged on the fixed structure, the tilting device is rotatably arranged on the fixed structure through the rack cylinder, the locking hook is releasably fixedly connected to the tilting device, the variable frequency vibrator is arranged on the tilting device, the terminal buffer is used to reduce the impact of the tilting device when the tilting device tilts, the rack cylinder is connected to the hydraulic system and is controlled by the hydraulic system; a displacement sensor is arranged on the rack cylinder for The action of the rack cylinder is precisely positioned; a rack cylinder stroke limit is provided on the rack cylinder, and the rack cylinder stroke limit is configured to stop the rotation of the rotating touch block when it touches the rotating touch block of the tilting device; the hydraulic system includes a proportional reversing valve, and the proportional reversing valve accurately controls the action of the rack cylinder by controlling the stability of the oil circuit of the rack cylinder. The method controls the rack cylinder by using the proportional reversing valve and hydraulically controlled one-way valve of the hydraulic system and the displacement sensor on the rack cylinder, and uses the locking hook, the variable frequency vibrator and the terminal buffer to control the tilting device, so that the tilting device can be stably tilted, the slag can be discharged evenly, and it can be hooked to the fixed structure.

2. The method for tilting and stably unloading slag in a leaching tank according to claim 1, It is characterized in that The following steps are involved: Step 1: Pull open the locking hook to release the tilting device loaded with slag from the fixed structure, and the tilting device slowly and steadily flips downward under the restriction of the rack cylinder; Step 2: When the tilting device is tilted downward, the tilting angle of the tilting device is accurately controlled by the proportional reversing valve, the hydraulically controlled one-way valve and the displacement sensor, and the tilting device is stably stopped. When the tilting device stops at different tilting angles, the vibration frequency of the variable frequency vibrator is adjusted to vibrate the tilting device to unload slag; Step 3, when the tilting device tilts into place, the tilting device touches and combines with the terminal buffer, and the tilting device stays stably to complete stable slag unloading; Step 4, resetting the tilting device and hooking the tilting device to the fixed structure through the locking hook; Step 5: After the tipping device is fully loaded with slag, repeat steps 1 to 4.

3. The method for tilting and stably unloading slag in a leaching tank according to claim 2, It is characterized in that The tilting device slowly and steadily tilts downward under the constraint of the rack cylinder, including: accurately controlling the displacement of the piston of the rack cylinder by the displacement sensor to accurately control the displacement of the rack of the rack cylinder, thereby accurately controlling the tilting of the tilting device.

4. The method for tilting and stably unloading slag in a leaching tank according to claim 3, It is characterized in that The precisely controlling the tilting of the tilting device includes precisely controlling the rotation of the leaching tank of the tilting device.

5. The method for tilting and stably unloading slag in a leaching tank according to claim 2, It is characterized in that In step 2, the tilting angle of the tilting device is accurately controlled and the tilting device is stably stopped by the proportional reversing valve, the hydraulically controlled one-way valve and the displacement sensor, including: accurately controlling the tilting of the tilting device by the displacement sensor, controlling the oil circuit of the rack cylinder by the proportional reversing valve to accurately control the movement of the rack cylinder to control the tilting angle of the tilting device, and locking the rack cylinder by using the hydraulically controlled one-way valve in combination with the proportional reversing valve to control the locking of the tilting device, so that the tilting device can be stably stopped at different tilting angles.

6. The method for tilting and stably discharging slag in a leaching tank according to claim 2, It is characterized in that In the step 2, the vibration frequency of the variable frequency vibrator is adjusted to vibrate the tilting device to unload slag, including: vibrating the tilting device by the variable frequency vibrator with a vibration frequency matching the tilting angle of the tilting device, so that the slag in the tilting device is vibrated and discharged.

7. The method for tilting and stably unloading slag in a leaching tank according to claim 2, It is characterized in that In the step 2, when the tilting device stays at different tilting angles, the rack cylinder is damped by a rack cylinder damper provided on the rack cylinder.

8. The method for tilting and stably unloading slag in a leaching tank according to claim 2, It is characterized in that In the step 3, the tilting device tilts into position, including: the second rack cylinder stroke limit provided on the rack cylinder touches the rotating contact block provided on the tilting device.

9. The method for tilting and stably unloading slag in a leaching tank according to claim 2, It is characterized in that In the step 3, the tilting device tilts into position, which includes: a mechanical stopper on the tilting device contacts and engages with the terminal buffer on the fixed structure.

10. The method for tilting and stably unloading slag in a leaching tank according to claim 2, It is characterized in that In the step 4, the tilting device is reset, including: an operator pushes the tilting device, and then the tilting device automatically and smoothly rises and resets under the restriction of the rack cylinder.

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