Material ball conveying device and method for vertical tank magnesium smelting

Abstract

The invention relates to the technical field of non-ferrous metal smelting, in particular to a material ball conveying device and method for vertical tank magnesium smelting. The material ball conveying device comprises a reduction workshop and a material ball conveying belt line used for conveying material balls pressed by a ball pressing machine; the end, away from the ball pressing machine, of the material ball conveying belt line is provided with a large-dip-angle conveying belt used for conveying material balls from the low position to the high position, and the end, away from the material ball conveying belt line, of the large-dip-angle conveying belt is provided with a flat belt line used for horizontally conveying the material balls. A bifurcate material receiver used for subpackaging material balls is arranged at one end, far away from the large-dip-angle conveying belt, of the flat belt line, a material bin is arranged below the bifurcate material receiver, a conveying assembly used for conveying the material bin is arranged below the material bin, and the conveying assembly, the bifurcate material receiver and the material bin are arranged in a reduction workshop. The conveying distance of the material balls in the stock bin can be effectively reduced, the breakage rate of the material balls is effectively reduced, and the efficiency of loading the material balls into the vertical tank of the reduction furnace can be effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of nonferrous metal smelting, and in particular to a device and method for conveying material balls for magnesium smelting in a vertical tank. Background Art

[0002] In the prior art, after the raw materials are pressed into balls by a ball press, they need to be first filled into a charging bin and then transported to the side of the reduction furnace. After being lifted by a lifting device and the bin mouth is opened, the balls fall into the vertical tank of the reduction furnace by gravity. During this process, the balls are easily broken after multiple collisions, and there is serious dust on site, resulting in a poor working environment for workers. At the same time, the entire charging process of the prior art takes a long time. When there are a large number of balls in the vertical tank of the reduction furnace, it is necessary to wait and charge in sequence. This process not only wastes time, but also causes rapid heat loss in the vertical tank of the reduction furnace, thereby increasing energy consumption. Furthermore, according to process requirements, a fixed weight of balls needs to be added to each vertical tank of the reduction furnace. Therefore, the balls in the silo need to be weighed before charging. The process is cumbersome and the workers have a heavy workload.

[0003] Therefore, there is an urgent need for a ball conveying device and method for vertical tank magnesium smelting, which can effectively reduce the transportation distance of the balls in the silo, effectively reduce the number of collisions of the balls in the silo during transportation, and reduce the breakage rate of the balls. It can not only effectively reduce the workload of workers, but also effectively improve the efficiency of loading the balls into the reduction furnace. Summary of the invention

[0004] The object of the present invention is to provide a device and method for conveying material balls for magnesium smelting in a vertical tank, so as to solve the problems existing in the above-mentioned prior art.

[0005] To achieve the above-mentioned purpose, the present invention provides the following scheme: a ball conveying device for vertical tank magnesium smelting, comprising a reduction workshop and a ball conveying belt line for conveying balls pressed by a ball press, a high-angle conveying belt for conveying balls from a low place to a high place being installed at one end of the ball conveying belt line away from the ball press, a flat belt line for horizontally conveying balls being installed at one end of the high-angle conveying belt away from the ball conveying belt line, a forked material receiver for packing balls being provided at one end of the flat belt line away from the high-angle conveying belt, a silo being provided below the forked material receiver, a transport assembly for transporting the silo being provided below the silo, and the transport assembly, the forked material receiver and the silo being provided inside the reduction workshop.

[0006] Preferably, the transport assembly comprises a first real vehicle track, a second real vehicle track and an empty vehicle track arranged in the reduction workshop, and the first real vehicle track, the second real vehicle track and the empty vehicle track are connected via a plurality of electric rotary switches.

[0007] Preferably, the first real vehicle track, the second real vehicle track and the empty vehicle track are arranged parallel to each other.

[0008] Preferably, a first measuring scale is arranged on the first actual vehicle track, and a second measuring scale is arranged on the second actual vehicle track. The first measuring scale and the second measuring scale are arranged below the forked material receiver.

[0009] Preferably, the first real vehicle track, the second real vehicle track and the empty vehicle track are arranged below the flat belt line.

[0010] Preferably, a vibrating screen for sorting the pellets is provided below the discharge end of the pellet press, and the discharge end of the vibrating screen is connected to the feed end of the pellet conveyor belt line.

[0011] Preferably, the ball press, the vibrating screen, the ball conveying belt line, the high-angle conveying belt, the flat belt line, and the forked material receiver are respectively provided with powder recovery lines, and the discharge end of the powder recovery line is connected to the feeding port of the ball press.

[0012] Preferably, a plurality of the silos are provided, and each of the silos is detachably connected to a base.

[0013] Preferably, the base moves along the first real vehicle track, the second real vehicle track, the empty vehicle track and the electric rotary switch.

[0014] A method for conveying material balls for magnesium smelting in a vertical tank comprises the following steps:

[0015] S1. The material is pressed into balls by a ball press and transported to the reduction workshop via the high-angle conveyor belt;

[0016] S2. The ball is transported to the forked material receiver through the flat belt line;

[0017] S3. The ball enters the silo through the forked feeder;

[0018] S4. After the silo is loaded with the balls, the silo transports the balls to the temporary storage area;

[0019] S5. Load the silo by crane;

[0020] S6. After the material is added, the silo returns to the forked material receiver through the transport assembly;

[0021] S7. Repeat steps S3-S6 to complete the cyclic conveying of the balls.

[0022] The present invention discloses the following technical effects:

[0023] The present invention conveys the material balls by means of a high-angle conveyor belt and a flat belt line, and then loads the material balls into a silo through a forked material receiver, and then loads the material balls into the vertical tank of the reduction furnace through the silo, which can effectively reduce the transportation distance of the material balls in the silo, effectively reduce the number of collisions of the material balls in the silo during transportation, and reduce the breakage rate of the material balls, which can not only effectively reduce the workload of workers, but also effectively improve the efficiency of loading the material balls into the vertical tank of the reduction furnace. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] 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 will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 This is an overall schematic diagram of the ball conveying of the present invention;

[0026] Figure 2 This is a schematic diagram of the ball conveying track operation structure of the present invention;

[0027] Figure 3 This is a schematic diagram of the structure of the lifting silo of the present invention;

[0028] Figure 4 This is a schematic diagram of the cross-sectional structure of the silo of the present invention;

[0029] Figure 5 This is a schematic diagram of the top view of the silo structure of the present invention;

[0030] Figure 6 This is a schematic diagram of the cross-sectional structure of the silo of the present invention;

[0031] Figure 7 This is a schematic diagram of the front view structure of the movable shaft of the present invention;

[0032] Among them, 1. Moving shaft; 2. Gate valve; 3. Fixed rod; 4. Shield; 5. Discharge port; 6. Support rod; 7. High-angle conveyor belt; 8. Flat belt line; 9. Forked material receiver; 10. Silo; 11. Powder recovery line; 12. Electric rotary turnout; 13. First metering scale; 14. Second metering scale; 15. First real vehicle track; 16. Second real vehicle track; 17. Empty vehicle track; 18. Ball conveyor belt line; 19. Reduction furnace; 20. Cylinder; 21. Inclined rod. DETAILED DESCRIPTION

[0033] The possible implementation schemes found in the art are:

[0034] Patent announcement number CN115094237A discloses a magnesium vertical tank smelting reduction device, including a reduction tank and a material taking device, wherein the material taking device includes: a feeder; a sleeve, the sleeve is slidably arranged on a bracket, and a first material taking port is arranged on the sleeve; a material taking barrel, the material taking barrel is arranged in the sleeve, and a second material taking port is arranged on the material taking barrel; a first slider, the first slider is slidably arranged in the sleeve, the first slider is also arranged on the material taking barrel, and rotates relative to the material taking barrel; a first screw that can rotate along its own axis, the first slider is provided with a first threaded hole for transmission connection with the first screw, one end of the first screw passes through the first threaded hole and then extends into the sleeve; a first shaft, the first shaft and the first screw Transmission connection, a first connection block with a second threaded hole is provided on the outer wall of the sleeve, one end of the first shaft passes through the second threaded hole and is rotatably arranged on the bracket; a second screw, the second screw is sleeved on the first shaft, and the second threaded hole is also used for transmission connection with the second screw; a third slide groove is provided on the outer wall of the first shaft, and the third slide groove extends spirally along the axial direction of the first shaft, and a second slider matching the third slide groove is provided inside the second screw. When the second slider slides in the third slide groove, the sleeve slides toward the direction of the furnace port close to the reduction tank, and the first slider pushes the material taking barrel into the reduction tank along the sliding direction of the sleeve, and the feeder feeds the material into the reduction tank through the aligned first and second material taking ports. A first straight slide groove is provided on the inner wall of the sleeve, and a third slider is provided on the outer wall of the material taking barrel, and the third slider is slidably connected with the first straight slide groove. The end of the material-collecting barrel that is used to extend into the reduction tank is provided with a material-collecting structure. The material-collecting plate includes a first material-collecting plate and a second material-collecting plate slidably connected to the first material-collecting plate. The first material-collecting plate is fixedly arranged on the material-collecting barrel. The inner wall of the sleeve is also provided with a rotating chute connected to the first straight chute. The third slider is also slidably connected to the rotating chute and drives the first material-collecting plate to rotate relative to the second material-collecting plate. A sealing device is provided at the furnace mouth of the sleeve, and the sealing device is automatically opened and closed by the cover opening device. It also includes a material receiving mechanism, which includes a material receiving box and a material receiving box. The material receiving box can be operably received in the material receiving box, and the opening of the material receiving box is against the inner wall of the material receiving box. A support rod for squeezing or stretching the reduction tank is also provided on the outer wall of the reduction tank. An auger is provided inside the material-collecting barrel, which is rotatably connected to the material-collecting barrel and discharges the material into the sleeve through the discharge port of the material-collecting barrel. The first material taking plate and the second material taking plate are respectively arranged on the side walls of the discharge port and are extended along the circumferential direction of the material taking barrel.

[0035] This patent uses a first screw to push the material barrel through a first slider, and at the same time the first screw drives the first shaft to rotate, so that the sleeve is connected to the second screw in transmission, and the sleeve is driven to rotate by the first shaft. After the first material feeding port on the material barrel is aligned with the second material feeding port on the sleeve, the material can be automatically transported to the reduction tank through the loader, thereby realizing the automation of loading.

[0036] The patent with patent announcement number CN203601932U discloses an automatic feeding system for a magnesium reduction vertical tank, including a main silo, a gate valve, a weighing feeder, a large-angle belt conveyor, a silo bracket one, a silo bracket two, a feeding silo, a feeding car, a feeding car bracket, a longitudinal feeding car, a longitudinal feeding car light rail, a transverse feeding car, a hoist trolley, a feeding hopper, an electric push rod, a weighing sensor and a control system.

[0037] The conveying process of this patent is as follows: the spherical magnesium ore is transported from the homemade ball workshop to the main material bin of the magnesium reduction workshop, and then falls into the weighing feeder through the gate valve under the main material bin. The quantitative spherical magnesium ore is then transported to the feeding bin through the high-angle belt conveyor. When the control system detects that the feeding bin at a certain position is empty, the control system will issue a command, and the feeding car will bring the empty bin back to the bottom of the high-angle belt conveyor chute for receiving the material, and at the same time send the filled feeding bin to the empty feeding bin. The longitudinal feeding car carries the horizontal feeding car to the bottom of the filled feeding bin for receiving the material. After reaching the rated material volume, the longitudinal feeding car and the horizontal feeding car are alternately moved to accurately position above the reduction tank, and then the spherical magnesium ore is fed into the reduction tank.

[0038] The main silo is equipped with spiral blades, which play a buffering role when the spherical magnesium ore falls to prevent the spherical magnesium ore from breaking. The main silo is equipped with a plug valve to control the opening and closing of the large silo. The large silo is equipped with a level meter to detect the material level in the silo at all times.

[0039] The silo support 1 and the feeding silo support 2 are equipped with light rails, and the feeding silo can move on the light rails of the silo support 1 and the feeding silo support 2 through the small wheels at the bottom. When the feeding silo is on the silo support 1, the spherical magnesium ore falling from the chute of the high-angle belt conveyor falls into the feeding silo through the spiral slideway in the middle of the feeding silo. Due to the effect of the spiral slideway, the spherical magnesium material slides slowly into the feeding silo, effectively preventing the crushing of the spherical magnesium material. When the feeding silo reaches the loading capacity, the weighing feeder automatically stops feeding. The feeding car is driven by a reducer and moves on the feeding car support. The feeding car sends the full feeding silo from the silo support 1 to the silo support 2. The silo support 2 is equipped with an electric push rod and a weighing sensor. When the full feeding silo is sent to the silo support 2 by the feeding car, the control rod of the electric push rod is automatically connected to the gate valve.

[0040] When the horizontal feeding car arrives here to receive the material, the electric push rod opens the gate valve to automatically discharge the material. When the horizontal feeding car receives the material to the rated feeding amount, the weighing sensor sends a signal to notify the electric push rod to close the gate valve. When the feeding bin on a silo bracket 2 is empty, the control system detects the empty bin position, and the control system controls the feeding car to send the full feeding bin from the silo bracket 1 to the empty bin position, removes the empty feeding bin through the driving device of the feeding car, and sends the full feeding bin to the silo bracket 2. Then the feeding car sends the empty feeding bin back to the silo bracket 1. The full feeding bin and the empty feeding bin are exchanged to achieve the purpose of feeding. When the reduction tank needs to be fed, the control system controls the longitudinal feeding car and the transverse feeding car to move, and moves the feeding hopper to the bottom of the feeding bin on the silo bracket 2 to receive the material. After the feeding hopper is full of material, the control system controls the longitudinal feeding car and the transverse feeding car to move the feeding hopper accurately to the top of the reduction tank to load the reduction tank.

[0041] There are two electric hoists installed on the hoist trolley, and the two electric hoists operate the reduction tank device alternately to complete other operations on the reduction tank except filling.

[0042] The function of the control system is to obtain the loading status of the main silo and each feeding silo, send control instructions, control the start and stop of the weighing feeder, the movement posture of the feeding trolley, the opening and closing of the gate valve controlled by the electric push rod, the movement of the longitudinal feeding trolley and the transverse feeding trolley, and the signal collection of the weighing sensor.

[0043] This patent uses a control system to automatically detect the status of each link in the system, realize the automatic transportation and feeding of spherical magnesium ore, and the time beat control is compact, saving feeding time, which can greatly reduce human participation, basically realize unmanned operation, and reduce harm to people;

[0044] The patented feeding vehicle can complete the exchange and transportation of empty feeding bins and full feeding bins through the control system, without any empty trips, saving time. One feeding vehicle can complete the feeding tasks of multiple reduction furnaces;

[0045] The patented automatic weighing feeding vehicle can control the feeding amount of the reduction tank, and can achieve automatic accurate positioning through the automatic movement of the longitudinal feeding vehicle and the lateral feeding vehicle, thus realizing automatic feeding;

[0046] The patented spiral slideways in the main silo and the feeding silo can effectively prevent the crushing of spherical magnesium ore and reduce the impact of crushed materials on the quality of magnesium smelting.

[0047] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0048] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0049] Reference Figure 1-Figure 7 The present invention provides a ball conveying device for magnesium smelting in a vertical tank, comprising a reduction workshop and a ball conveying belt line 18 for conveying balls pressed by a ball press, wherein a high-angle conveying belt 7 for conveying balls from a low place to a high place is installed at one end of the ball conveying belt line 18 away from the ball press, a flat belt line 8 for horizontally conveying balls is installed at one end of the high-angle conveying belt 7 away from the ball conveying belt line 18, a forked material receiver 9 for packing balls is arranged at one end of the flat belt line 8 away from the high-angle conveying belt 7, a silo 10 is arranged below the forked material receiver 9, a transport assembly for transporting the silo 10 is arranged below the silo 10, and the transport assembly, the forked material receiver 9 and the silo 10 are arranged in the reduction workshop.

[0050] The present invention conveys the material balls through a high-angle conveyor belt 7 and a flat belt line 8, and then loads the material balls into a silo 10 through a forked material receiver 9, and then loads the material balls into the vertical tank of the reduction furnace through the silo 10, which can effectively reduce the transportation distance of the material balls in the silo 10, effectively reduce the number of collisions of the material balls in the silo 10 during transportation, and reduce the breakage rate of the material balls. It can not only effectively reduce the workload of workers, but also effectively improve the efficiency of loading the material balls into the vertical tank of the reduction furnace 19.

[0051] The ball press is a device that presses powdered materials into balls. It is widely used in various industrial fields, such as the pressing and molding of materials such as coal, mineral powder, metal powder, coal powder, coke powder, etc. The working principle of the ball press is usually to transmit power to two rollers through a reducer, so that they rotate towards each other. The material naturally enters the ball mold during the rotation of the two rollers. As the rollers rotate, the pressure on the material gradually increases, and finally reaches a peak at the line contact point of the two rollers, thereby pressing the powdered material into a finished ball.

[0052] The ball press has a wide range of applications. It can be used to produce various materials and powders, such as cryolite, alumina, fertilizers, magnesium powder, bauxite, aluminum ash, etc.; as well as powders and auxiliary materials in the non-ferrous metal industry, powders in the refractory industry, and materials with high added value are more suitable for use.

[0053] The flat belt line 8 and the ball conveyor belt line 18 are equipment for conveying materials, usually used for material handling and transportation in industrial production. This equipment is mainly composed of a conveyor belt, a drive device, a roller support device, a tensioning device, etc. The conveyor belt is a medium for transporting materials from one location to another. It is generally composed of a composite of rubber and fiber materials and has high tensile strength, wear resistance and aging resistance. The drive device usually adopts a combined drive mode of motor-reducer-hydraulic coupling. The motor provides power, which is decelerated by the reducer and transmitted to the drive wheel, thereby driving the conveyor belt to run. The roller support device is mainly composed of rollers, roller frames, supporting roller shafts, stop rollers, etc., which play a role in supporting and guiding the conveyor belt. The tensioning device is mainly used to maintain the appropriate tension of the conveyor belt under normal working conditions. Commonly used tensioning devices include weights and pneumatic tensioning devices.

[0054] The high-angle conveyor belt 7 is a continuous conveying device that can realize large-angle or even vertical conveying, and has the characteristics of large conveying capacity, strong versatility, and wide application range. It has a simple structure, convenient maintenance, small space occupation, and investment saving, and is easy to arrange. Therefore, it is widely promoted and used in industries such as coal, electricity, metallurgy, chemical industry, and grain.

[0055] The forked material catcher 9 is used in a material conveying system, and is usually used to divert materials from a conveying pipe or equipment to two or more different directions. This type of catcher is very common in industrial production, especially in situations where materials need to be distributed to different processing or packaging links; the working principle of the forked material catcher 9 is usually based on the physical properties of the material (such as weight, shape, size, etc.) and the design of the conveying system. For example, in a pneumatic conveying system, the forked material catcher 9 uses the direction and speed of the airflow to control the flow direction of the material. The forked material catcher 9 is equipped with an adjustable valve or baffle to control the proportion of materials entering different branches. The forked material catcher 9 can effectively divert materials, improve production efficiency, and can flexibly adjust the material distribution ratio as needed.

[0056] According to a further optimized solution, the transport assembly includes a first real vehicle track 15, a second real vehicle track 16 and an empty vehicle track 17 arranged in the restoration workshop, and the first real vehicle track 15, the second real vehicle track 16 and the empty vehicle track 17 are connected through a plurality of electric rotary switches 12. The empty vehicle track 17 can be connected to the first real vehicle track 15 and the second real vehicle track 16 through the electric rotary switch 12.

[0057] In a further optimized solution, the first real vehicle track 15 , the second real vehicle track 16 and the empty vehicle track 17 are arranged parallel to each other, so that the silo 10 can effectively move on the first real vehicle track 15 , the second real vehicle track 16 and the empty vehicle track 17 .

[0058] Further optimization scheme, a first measuring scale 13 is arranged on the first real vehicle track 15, and a second measuring scale 14 is arranged on the second real vehicle track 16. The first measuring scale 13 and the second measuring scale 14 are arranged below the forked material receiver 9. The first measuring scale 13 and the second measuring scale 14 can effectively weigh the material balls in the silo 10.

[0059] Further optimizing the scheme, the first real vehicle track 15, the second real vehicle track 16 and the empty vehicle track 17 are arranged below the flat belt line 8. The silo 10 can effectively move on the first real vehicle track 15, the second real vehicle track 16 and the empty vehicle track 17.

[0060] In a further optimization scheme, a vibrating screen for sorting the pellets is provided below the discharge end of the pellet press, and the discharge end of the vibrating screen is connected to the feed end of the ball conveying belt line 18. The vibrating screen can effectively sort the pellets.

[0061] To further optimize the solution, powder recovery lines 11 are respectively provided on the ball press, vibrating screen, ball conveying belt line 18, high-angle conveying belt 7, flat belt line 8, and forked material receiver 9, and the discharge end of the powder recovery line 11 is connected to the feeding port of the ball press. The powder recovery line 11 can effectively recover the small particles of powder produced by the ball press, vibrating screen, ball conveying belt line 18, high-angle conveying belt 7, flat belt line 8, and forked material receiver 9, and then use the ball press again to make balls, which not only effectively reduces the dust on site, but also effectively saves materials.

[0062] In a further optimized solution, a plurality of silos 10 are provided, and each silo 10 is detachably connected to a base. A plurality of silos 10 can be used for continuous operation in a cycle, which effectively shortens the waiting time of a plurality of vertical tanks in the reduction furnace, shortens the time for adding materials, effectively increases the output of a single vertical tank, shortens the production cycle, and effectively improves production efficiency.

[0063] In order to enable the material balls in the silo 10 to be effectively added into the vertical tank of the reduction furnace, a support rod 6 is fixedly connected to the top surface of the silo 10, and a gate valve 2 is installed in the center of the support rod 6. A discharge port 5 is opened at the bottom of the silo 10, and a baffle 4 is installed in the discharge port 5. One end of the baffle 4 extending into the silo 10 is fixedly connected to a movable shaft 1, and the end of the movable shaft 1 away from the baffle 4 passes through the support rod 6 and is rotatably connected to the gate valve 2. A fixed rod 3 is fixedly connected in the silo 10, and a cylinder 20 is fixedly connected to the center of the fixed rod 3, and the cylinder 20 is sleeved on the movable shaft 1 and slidably connected to the movable shaft 1. A plurality of inclined rods 21 are fixedly connected to the end of the cylinder 20 facing the baffle 4, and the plurality of inclined rods 21 are arranged at equal intervals. The lower end of the inclined rod 21 extends out of the discharge port 5 and is detachably connected to the baffle 4. The diameter of the circle formed by the ends of the plurality of inclined rods 21 extending out of the discharge port 5 is greater than the diameter of the discharge port 5.

[0064] The gate valve 2 is used to control the separation or contact between the baffle cover 4 and the discharge port 5. When the baffle cover 4 is separated from the discharge port 5, the ball can be discharged from the discharge port 5 of the silo 10. When the baffle cover 4 is contacted with the discharge port 5, the ball cannot be discharged from the discharge port 5 of the silo 10.

[0065] In a further optimized solution, the base moves along the first real vehicle track 15, the second real vehicle track 16, the empty vehicle track 17 and the electric rotary switch 12. The base can effectively drive the silo 10 to perform a continuous operation in a cycle.

[0066] A method for conveying material balls for magnesium smelting in a vertical tank comprises the following steps:

[0067] S1. The material is pressed into balls by a ball press and transported to the reduction workshop via a high-angle conveyor belt 7;

[0068] S2. The ball is transported to the forked material receiver 9 through the flat belt line 8;

[0069] S3. The ball enters the silo 10 through the forked feeder 9;

[0070] S4. After the silo 10 is loaded with the balls, the silo 10 transports the balls to the temporary storage area;

[0071] S5. Loading material by crane hoisting silo 10;

[0072] S6. After adding the material, the silo 10 returns to the forked material receiver 9 through the transport assembly;

[0073] S7. Repeat steps S3-S6 to complete the cyclic conveying of the ball

[0074] Working process:

[0075] The stone enters the rotary kiln for calcination to become qualified calcined white and enters the storage bin. It enters the batching workshop through the unloading valve and is mixed with the crushed ferrosilicon in proportion. The prepared mixture is transported to the mill through the conveyor belt to be ground into 100-mesh powder, and then transported to the ball press machine through the elevator for ball pressing. The pressed balls are sorted by the vibrating screen, and the formed qualified balls are transported to the third floor of the reduction workshop by the high-angle conveyor belt 7.

[0076] The material balls are conveyed to the flat belt line 8 through the high-angle conveyor belt 7, and are conveyed to the forked material receiver through the flat belt line 8, and enter the silo 10 through the forked material receiver 9. The first metering scale 13 and the second metering scale 14 under the silo 10 weigh the material balls loaded into the silo 10. The forked material receiver 9, the first metering scale 13, and the second metering scale 14 are connected to the PLC controller, and the movement of the base is controlled by the PLC controller. After the weight of the material balls in the silo 10 reaches the preset value, the forked material receiver 9 automatically turns to load the silo 10 on the other track.

[0077] After the silo 10 is fully loaded with materials, the material balls are transported to the material ball temporary storage area of ​​the reduction furnace through the base below the silo 10 to wait for unloading and loading.

[0078] At this time, a crane is used to lift the silo 10 to the tank mouth of the vertical tank of the reduction furnace. After the material is added, the base drives the silo 10 to move to the empty vehicle track 17, and returns to the first real vehicle track 15 or the second real vehicle track 16 through the electric rotating switch 12. The base drives the silo 10 to move to the bottom of the forked material receiver 9 to carry out the next round of loading balls.

[0079] After the ball press of the raw material workshop is produced, the ball of the present invention is transported to the third floor of the reduction workshop through the ball conveying belt line 18, the high-angle conveying belt 7 and the flat belt line 8, so that the ball does not need to be transported, the risk of ball breakage is reduced, and labor is saved; the ball is automatically loaded through the forked material receiver 9, and is automatically weighed and sent to the vertical tank of the reduction furnace through the silo 10, so that the loading of each vertical tank can be accurately controlled, which is convenient for the formulation of process parameters and ensures the stability of the production process and the final product; the silo 10 runs automatically on the track without manual assistance. In addition, the silo 10 can realize convenient material dropping. It only needs to lift the moving shaft 1 of the silo 10 upward to add material. The adding is fast, does not affect the temperature in the vertical tank of the reduction furnace, and saves fuel; each silo 10 is closed and will not produce dust flying; each tank mouth of the vertical tank is provided with an unorganized emission collection cover to collect all the dust into the bag dust collector; ensure that the entire working environment is dust-free and can effectively reduce labor costs.

[0080] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0081] The embodiments described above are only descriptions of the preferred modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. A ball conveying device for magnesium smelting in a vertical tank, characterized in that: The invention comprises a reduction workshop and a ball conveying belt line (18) for conveying balls pressed by a ball press, wherein a high-angle conveying belt (7) for conveying balls from a low place to a high place is installed at one end of the ball conveying belt line (18) away from the ball press, a flat belt line (8) for conveying balls horizontally is installed at one end of the high-angle conveying belt (7) away from the ball conveying belt line (18), a forked material receiver (9) for packing balls is arranged at one end of the flat belt line (8) away from the high-angle conveying belt (7), a silo (10) is arranged below the forked material receiver (9), a transport assembly for transporting the silo (10) is arranged below the silo (10), and the transport assembly, the forked material receiver (9) and the silo (10) are arranged in the reduction workshop.

2. The vertical tank magnesium smelting ball conveying device according to claim 1 is characterized in that: The transport assembly comprises a first real vehicle track (15), a second real vehicle track (16) and an empty vehicle track (17) arranged in the restoration workshop, wherein the first real vehicle track (15), the second real vehicle track (16) and the empty vehicle track (17) are connected via a plurality of electric rotary switches (12).

3. The vertical tank magnesium smelting ball conveying device according to claim 2 is characterized in that: The first real vehicle track (15), the second real vehicle track (16) and the empty vehicle track (17) are arranged parallel to each other.

4. The device for conveying material balls for magnesium smelting in a vertical tank according to claim 2 is characterized in that: A first measuring scale (13) is arranged on the first vehicle track (15), and a second measuring scale (14) is arranged on the second vehicle track (16). The first measuring scale (13) and the second measuring scale (14) are arranged below the forked material receiver (9).

5. The device for conveying material balls for magnesium smelting in a vertical tank according to claim 2, characterized in that: The first real vehicle track (15), the second real vehicle track (16) and the empty vehicle track (17) are arranged below the flat belt line (8).

6. The device for conveying material balls for magnesium smelting in a vertical tank according to claim 1, characterized in that: A vibrating screen for sorting pellets is arranged below the discharge end of the pellet press, and the discharge end of the vibrating screen is connected to the feed end of the pellet conveying belt line (18).

7. The device for conveying material balls for magnesium smelting in a vertical tank according to claim 6, characterized in that: The ball press, the vibrating screen, the ball conveying belt line (18), the high-angle conveying belt (7), the flat belt line (8), and the forked material receiver (9) are respectively provided with a powder recovery line (11), and the discharge end of the powder recovery line (11) is connected to the feeding port of the ball press.

8. The device for conveying material balls for magnesium smelting in a vertical tank according to claim 2, characterized in that: A plurality of the material bins (10) are provided, and each of the material bins (10) is detachably connected to a base.

9. The device for conveying material balls for magnesium smelting in a vertical tank according to claim 8, characterized in that: The base moves along the first real vehicle track (15), the second real vehicle track (16), the empty vehicle track (17) and the electric rotary switch (12).

10. A method for conveying material balls for magnesium smelting in a vertical tank, based on the device for conveying material balls for magnesium smelting in a vertical tank according to claims 1-9, characterized in that: The following steps are involved: S1. The material is pressed into balls by a ball press and transported to the reduction workshop via the high-angle conveyor belt (7); S2. The ball is transported to the forked material receiver (9) through the flat belt line (8); S3. The ball enters the silo (10) through the forked material receiver (9); S4. After the silo (10) is loaded with the balls, the silo (10) transports the balls to a temporary storage area for the balls; S5. Loading the silo (10) by crane; S6. After the material is added, the silo (10) returns to the forked material receiver (9) through the transport assembly; S7. Repeat steps S3-S6 to complete the cyclic conveying of the balls.

Images