A storage device and process for producing iron concentrate powder

Abstract

The present invention discloses a storage device and process for producing iron ore concentrate, which mainly relates to the field of iron ore concentrate storage. It includes a storage outer bin, a discharge conveyor, and a feed elevator. The interior of the storage outer bin is provided with a dehumidifier and a cooling component. The top of the storage outer bin is provided with an outer bin feed port used in conjunction with the feed elevator. The bottom of the storage outer bin is provided with an outer bin discharge port used in conjunction with the discharge conveyor. The interior of the storage outer bin is rotatably connected to a rotating table, and the rotating table is provided with multiple storage inner bins. The beneficial effect of the present invention is that it can solve the technical problem that the quality of iron ore concentrate is easily affected by oxidation and deterioration during storage. By strictly controlling the storage environment of the iron ore concentrate, the iron ore concentrate is prevented from being exposed to an environment with high humidity and temperature during storage, thereby ensuring the quality of the iron ore concentrate, extending the storage time, and reducing the storage cost.

Description

Technical Field

[0001] The present invention relates to the field of iron ore concentrate storage, and in particular to a storage device and process for producing iron ore concentrate. Background Art

[0002] Iron ore concentrate is made from iron ore through processes such as crushing, grinding, magnetic separation, and drying. The particle size of iron ore concentrate is small, and it needs to be stored in storage equipment after production. When the current storage equipment and storage process are used to store iron ore concentrate, the iron ore concentrate is easily oxidized and deteriorated after being stored for a period of time, which increases the number of impurities inside the iron ore concentrate, and has a greater impact on downstream processing steps with higher purity requirements, resulting in a decline in the quality of the iron ore concentrate, which seriously affects the sale and use of the iron ore concentrate after production. Therefore, the storage equipment and process of iron ore concentrate need to be further improved. Summary of the Invention

[0003] The purpose of the present invention is to provide a storage device and process for producing iron ore concentrate, which can solve the technical problem that iron ore concentrate is easily oxidized and deteriorated during storage, thereby affecting the quality of iron ore concentrate. By strictly controlling the storage environment of iron ore concentrate, the iron ore concentrate is prevented from being exposed to an environment with high humidity and temperature during storage, thereby ensuring the quality of the iron ore concentrate, extending the storage time, and reducing the storage cost.

[0004] To achieve the above-mentioned purpose, the present invention is implemented through the following technical solutions:

[0005] A storage device for producing iron ore concentrate, comprising a storage outer bin, a discharge conveyor, and a feed elevator, wherein a dehumidifier and a cooling component are provided inside the storage outer bin, a top of the storage outer bin is provided with an outer bin feed port used in conjunction with the feed elevator, a bottom of the storage outer bin is provided with an outer bin discharge port used in conjunction with the discharge conveyor, the interior of the storage outer bin is rotatably connected to a rotating platform, a plurality of storage inner bins are provided on the rotating platform, the top of the storage inner bin is provided with an inner bin feed port that can be aligned with the outer bin feed port, the bottom of the storage inner bin is provided with an inner bin discharge port that can be aligned with the outer bin discharge port, a feed hopper is vertically slidably connected to the outer bin feed port, a feed channel that can be closed by the side wall of the outer bin feed port is provided on the side wall of the feed hopper, and an upper sealing plug is vertically slidably connected to the inner bin feed port The storage outer warehouse is provided with a discharging power rod that drives the discharging hopper to slide upward to push the upper sealing plug open. When the upper sealing plug is opened, the feed channel connects the interior of the storage inner warehouse with the outside of the storage outer warehouse. The outer warehouse discharge port is vertically slidably connected to the discharging hopper, and the bottom of the discharging hopper is provided with a discharging channel, and a discharging plate that can close the discharging channel is provided below the outer warehouse discharge port. The discharging plate is located above the discharging conveyor, and the inner warehouse discharge port is vertically slidably connected to the lower sealing plug, and a return spring is provided between the lower sealing plug and the storage inner warehouse. The storage outer warehouse is provided with a discharging power rod that drives the discharging hopper to slide upward to push the lower sealing plug open. When the lower sealing plug is opened, the discharge channel connects the interior of the storage inner warehouse with the outside of the storage outer warehouse.

[0006] Furthermore, the bottom of the feed hopper is conical, and the feed channel is connected to the edge of the cone.

[0007] Furthermore, a plurality of pressure sensors are provided at the bottom of the feed hopper, and the pressure sensors are electrically connected to the feed power rod.

[0008] Furthermore, a support rod is provided on the top of the storage inner bin, a sliding sleeve is provided on the support rod, a sliding column is provided at the bottom of the upper sealing plug, the sliding column is slidably connected to the inside of the sliding sleeve, and the compression spring is located between the bottom of the sliding column and the bottom of the sliding sleeve.

[0009] Furthermore, the bottoms of the discharge plate and the discharge hopper are both inclined, and baffles are symmetrically provided on both sides of the discharge plate.

[0010] Furthermore, a connected lower pipe head is provided on the top of the discharge hopper, and a push rod is provided inside the lower pipe head. When the discharge hopper slides upward, the push rod contacts the bottom of the lower sealing plug.

[0011] Furthermore, a connected upper tube head is provided at the bottom of the storage inner bin, the lower sealing plug is slidably connected to the inside of the upper tube head, and when the discharge hopper slides upward, the lower tube head is slidably sleeved on the outside of the upper tube head.

[0012] Furthermore, a sliding cavity is provided on the top of the storage inner bin, a connecting column is provided on the lower sealing plug, the top of the connecting column is slidably connected in the sliding cavity, and the return spring is arranged between the top of the connecting column and the top of the sliding cavity.

[0013] Furthermore, the cooling component includes a cooling water inlet pipe and a cooling water outlet interlayer arranged inside the rotating table, the cooling water outlet interlayer is located inside the side wall of the cooling water inlet pipe, the cooling water inlet pipe is rotatably connected to a water inlet connector, the cooling water outlet interlayer is rotatably connected to a water outlet connector, a cooling interlayer is provided on the side wall of the storage inner warehouse, and a water inlet branch pipe and a water outlet branch pipe are connected on the cooling interlayer, the water inlet branch pipe is connected to the water inlet connector, and the water outlet branch pipe is connected to the water outlet connector.

[0014] A storage process for producing iron ore concentrate comprises the following steps:

[0015] S1. A dehumidifier and cooling components are used to create a dry, low-temperature storage environment inside the outer storage bin. The feed channel on the feed hopper is sealed by the side wall of the outer bin feed port, and the discharge channel on the discharge hopper is sealed by the discharge plate, so that the feed hopper and the discharge hopper respectively seal the outer bin feed port and the outer bin discharge port, ensuring the stability of the storage environment.

[0016] S2. When the iron ore fines are fed from the feed hopper, the rotary table rotates so that the inner bin feed port on a certain storage bin is aligned with the outer bin feed port. The feed power rod drives the feed hopper to slide downward to push open the upper sealing plug. At this time, the feed channel is opened, connecting the interior of the storage bin with the exterior of the storage bin. Under the action of the feed elevator, the iron ore fines outside directly enter the interior of the storage bin along the feed channel without disturbing the storage environment inside the outer bin.

[0017] S3. After the iron ore concentrate is fed, the feed power rod drives the feed hopper to slide upward and reset, closing the outer bin feed port. The upper sealing plug slides upward and resets under the action of the compression spring to close the inner bin feed port, so that the iron ore concentrate is stored in a relatively closed environment and does not oxidize and deteriorate.

[0018] S4. When the iron ore fines are discharged from the discharge hopper, the rotary table rotates so that the inner bin discharge port on a certain storage inner bin is aligned with the outer bin discharge port. The discharge power rod drives the discharge hopper to slide upward to push open the lower sealing plug. At this time, the discharge channel is opened, connecting the interior of the storage inner bin with the exterior of the storage outer bin. The iron ore fines in the storage inner bin fall directly along the discharge channel onto the discharge plate below the storage outer bin and are transported by the discharge conveyor without disturbing the storage environment inside the storage outer bin.

[0019] S5. After the iron ore concentrate is discharged, the discharge power rod drives the discharge hopper to slide downward and reset, closing the outer bin discharge port. The lower sealing plug slides downward and resets under the action of the reset spring to close the inner bin discharge port, so that the iron ore concentrate stored in the inner bin can still be stored in a relatively closed environment and will not be oxidized and deteriorated.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] 1. The present invention installs a dehumidifier and a cooling component inside the storage outer bin, so that the interior of the storage outer bin forms a dry, low-temperature stable storage environment. As a result, the storage inner bin storing the iron ore concentrate is kept in a dry, low-temperature stable storage environment for a long time. External rain, snow, or high temperatures will not interfere with the internal environment of the storage outer bin, thus avoiding exposure of the iron ore concentrate to a humid and high-temperature environment during storage, reducing the oxidation and deterioration of the iron ore concentrate, and reducing the amount of impurities generated during storage, thereby ensuring the quality of the stored iron ore concentrate.

[0022] 2. An outer warehouse feed port and an outer warehouse discharge port are provided on the storage outer warehouse, and an inner warehouse feed port and an inner warehouse discharge port are provided on the storage inner warehouse. When feeding, the rotary table rotates so that the inner warehouse feed port on a certain storage inner warehouse is aligned with the outer warehouse feed port, and the feeding power rod drives the feed hopper to slide downward to push open the upper sealing plug. At this time, the feeding channel is opened, connecting the interior of the storage inner warehouse with the exterior of the storage outer warehouse. Under the action of the feeding elevator, the external iron ore powder directly enters the interior of the storage inner warehouse along the feeding channel, without disturbing the storage environment inside the storage outer warehouse. When discharging, the rotary table rotates so that the inner warehouse discharge port on a certain storage inner warehouse is aligned with the outer warehouse discharge port, and the discharging power rod drives the discharge port. The hopper slides upward to push open the lower sealing plug, and at this time the discharge channel is opened, connecting the interior of the storage inner bin with the outside of the storage outer bin. The iron ore concentrate in the storage inner bin falls directly along the discharge channel onto the discharge plate below the storage outer bin, and is discharged and transported by the discharge conveyor, without disturbing the storage environment inside the storage outer bin. This structure prevents the environment inside the storage outer bin from communicating with the outside world during the loading and unloading process of the iron ore concentrate, thereby ensuring the stability of the environment inside the storage outer bin, allowing the iron ore concentrate to be stored for a long time without oxidation and deterioration, thereby ensuring the quality of the iron ore concentrate storage, extending the storage time, and reducing the storage cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Attachment Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0024] Attachment Figure 2 It is a right side view of the present invention.

[0025] Attachment Figure 3 This invention is attached Figure 2 Cross-sectional view in the AA direction.

[0026] Attachment Figure 4 This invention is attached Figure 3 Cross-sectional view in the BB direction.

[0027] Attachment Figure 5 This invention is attached Figure 3 Cross-sectional view in CC direction.

[0028] Attachment Figure 6 This invention is attached Figure 3 A partial enlarged view of area D in the middle.

[0029] Attachment Figure 7 This invention is attached Figure 3 A partial enlarged view of part E in the middle.

[0030] Reference numerals shown in the accompanying drawings:

[0031] 1. Storage outer bin; 2. Discharge conveyor; 3. Feed elevator; 4. Dehumidifier; 5. External bin feed port; 6. External bin discharge port; 7. Rotary table; 8. Storage inner bin; 9. Internal bin feed port; 10. Internal bin discharge port; 11. Feed hopper; 12. Feed channel; 13. Upper sealing plug; 14. Compression spring; 15. Feed power rod; 16. Discharge hopper; 17. Discharge channel; 18. Discharge plate; 19. Lower sealing plug. 20. Return spring; 21. Discharge power rod; 22. Pressure sensor; 23. Support rod; 24. Sliding sleeve; 25. Sliding column; 26. Baffle; 27. Lower pipe head; 28. Push rod; 29. Upper pipe head; 30. Sliding cavity; 31. Connecting column; 32. Cooling water inlet pipe; 33. Cooling water outlet interlayer; 34. Water inlet connector; 35. Water outlet connector; 36. Cooling interlayer; 37. Water inlet branch pipe; 38. Water outlet branch pipe. DETAILED DESCRIPTION

[0032] Below in conjunction with specific embodiment, further set forth the present invention.Should be understood that these embodiments are only used to illustrate the present invention and are not used in limiting the scope of the present invention.In addition, should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms fall within the scope limited by the application equally.

[0033] Reference Figure 1 and Figure 2 The present invention relates to a storage device and process for producing iron ore concentrate, wherein the main structure of the storage device includes a storage outer bin 1, a discharge conveyor 2, and a feed elevator 3. A plurality of legs are provided at the bottom of the storage outer bin 1 to improve the stability of the storage outer bin 1 structure. The discharge conveyor 2 is generally a belt conveyor, so that the discharged iron ore concentrate can be transported to a designated location by the discharge conveyor 2. The feed elevator 3 is generally a bucket elevator, which is used to lift the produced iron ore concentrate to a high place so that it can be stored from the top to the inside of the storage outer bin 1. The storage outer bin 1 is provided with a plurality of legs at the bottom to improve the stability of the storage outer bin 1 structure. The discharge conveyor 2 is generally a belt conveyor, so that the discharged iron ore concentrate can be transported to a designated location by the discharge conveyor 2. The feed elevator 3 is generally a bucket elevator, which is used to lift the produced iron ore concentrate to a high place so that it can be stored from the top to the inside of the storage outer bin 1. The dehumidifier 4 and the cooling component can be used. The dehumidifier 4 adopts the common dehumidification structure on the market to discharge the moisture inside the storage outer warehouse 1, ensure that a dry environment is formed inside the storage outer warehouse 1, and avoid the situation where moisture contacts the iron ore powder and oxidizes and deteriorates. The cooling component can cool the inside of the storage outer warehouse 1. The temperature inside the iron ore powder is high after drying. If the temperature is not cooled in time, a high-temperature environment may be formed inside the accumulated iron ore powder, which may cause the internal iron ore powder to oxidize. The cooling component can control the temperature of the stored iron ore powder at a lower level to reduce the occurrence of oxidation and deterioration.

[0034] The top of the storage outer warehouse 1 is provided with an outer warehouse feeding port 5 used in conjunction with the feeding hoist 3. The outer warehouse feeding port 5 passes through the side wall of the storage outer warehouse 1. The feeding hoist 3 lifts the iron ore fine powder to a high place and then drops it to the outer warehouse feeding port 5, so that the iron ore fine powder is stored in the interior of the storage outer warehouse 1. The bottom of the storage outer warehouse 1 is provided with an outer warehouse discharging port 6 used in conjunction with the discharging conveyor 2. The outer warehouse discharging port 6 passes through the side wall of the storage outer warehouse 1. The stored iron ore fine powder is discharged from the outer warehouse discharging port 6 to realize the discharging of the iron ore fine powder. The interior of the storage outer warehouse 1 is rotatably connected to a rotating table 7 through a bearing. The rotating table 7 utilizes the existing The motor and gear cooperate to drive it to rotate. Specifically, gears meshing with each other are set on the output shaft of the motor and the outside of the rotating table 7. The rotation drive of the rotating table 7 is realized by the cooperation of the motor and the meshing gears. The connection between the rotating table 7 and the storage outer bin 1 is rotated and sealed with a sealing gasket. A plurality of storage inner bins 8 are provided on the rotating table 7. Specifically, a support plate is fixed on the rotating table 7 by welding or bolts. The plurality of storage inner bins 8 are fixed on the support plate by welding or bolts. The bottom of the storage inner bin 8 extends downward after passing through the support plate. The bottom of the storage inner bin 8 is tapered, so that the inner bin The iron ore concentrate in the upper part is easier to be discharged in a concentrated manner. Preferably, a fixed plate is set between the middle parts of multiple storage inner bins 8, and a support plate is set on the side wall of the storage outer bin 1. The fixed plate is used to connect multiple storage inner bins 8. A roller is set at the bottom of the fixed plate. The roller is in rolling contact with the support plate, which further improves the firmness of the rotation structure of multiple storage inner bins 8. The top of each storage inner bin 8 is provided with an inner bin feed port 9 that can be aligned with the outer bin feed port 5, and the bottom of the storage inner bin 8 is provided with an inner bin discharge port 10 that can be aligned with the outer bin discharge port 6. Such a structure allows each storage inner bin 8 to be fed or discharged when it is needed. When the storage bin 1 is in the storage state, the storage bin 1 is rotated by the rotating table 7, so that the inner bin feed port 9 is aligned with the outer bin feed port 5, and the inner bin discharge port 10 is aligned with the outer bin discharge port 6, so as to facilitate unified feeding from the outer bin feed port 5 on the storage outer bin 1 and discharging from the outer bin discharge port 6. Such an arrangement can only provide a feeding elevator 3 at the outer bin feed port 5 of the storage outer bin 1 and a discharging conveyor 2 at the outer bin discharge port 6, which greatly reduces the number of feeding and discharging equipment and the storage cost. At the same time, it can reduce the number of openings on the storage outer bin 1 and improve the overall sealing of the storage outer bin 1.

[0035] The outer bin feed port 5 is vertically slidably connected to a feed hopper 11, which is in the shape of a funnel with a wide top and a narrow bottom, so that the iron ore concentrate can be fed more smoothly and concentratedly along the feed hopper 11. A sealing gasket is provided between the side wall of the feed hopper 11 and the side wall of the outer bin feed port 5, so that the sealing performance of the relative sliding structure of the two is better. The side wall of the feed hopper 11 is provided with a feed channel 12 that can be closed by the side wall of the outer bin feed port 5. Figure 4The top of the feed channel 12 passes through the top of the feed hopper 11, and the bottom passes through the side wall of the feed hopper 11. This structure makes it possible for the bottom of the feed channel 12 on its side wall to be blocked by the side wall of the outer bin feed port 5 when the feed hopper 11 is located inside the outer bin feed port 5, thereby blocking the entire feed channel 12, so that external moisture cannot enter the interior of the storage outer bin 1 through the feed channel 12, ensuring the stability of the storage environment inside the outer bin 1. The inner bin feed port 9 is vertically slidably connected with an upper sealing plug 13, and the upper sealing plug 13 slides and seals with the inner bin feed port 9, thereby effectively preventing the storage of the outer bin 1 from leaking. The opening and closing control of the inner bin feed port 9 is now provided. A compression spring 14 is provided between the upper sealing plug 13 and the storage inner bin 8. Under the elastic force of the compression spring 14, the upper sealing plug 13 is kept closed to the inner bin feed port 9 to improve the sealing effect. The preferred upper sealing plug 13 is narrow at the top and wide at the bottom, so that the upper sealing plug 13 is pressed and fixed at the inner bin feed port 9 from the inside out. A feeding power rod 15 for driving the feed hopper 11 to slide downward to push the upper sealing plug 13 open is fixed on the storage outer bin 1 by welding or bolts. The specific feeding power rod 15 is a cylinder or an electric cylinder structure. The movable end is fixed to the side wall of the feed hopper 11 by welding or bolts, and the feed hopper 11 is driven to move up and down by its vertical telescopic movement. When it moves downward, the bottom of the feed hopper 11 contacts the upper sealing plug 13 and pushes it downward, so that the bottom end of the feed channel 12 on the side of the feed hopper 11 enters the interior of the storage inner bin 8, so that when the upper sealing plug 13 is opened, the feed channel 12 connects the interior of the storage inner bin 8 with the outside of the storage outer bin 1, and the side wall of the feed hopper 11 isolates the feed channel 12 from the internal space of the storage outer bin 1. Such a structure is used when feeding iron ore fines. , the iron ore fines directly enter the storage inner warehouse 8 through the feeding channel 12, and the storage outer warehouse 1 is always kept in isolation from the external environment, preventing external moisture from entering the interior of the storage outer warehouse 1 during the feeding process of the iron ore fines, ensuring the stability of the environment of the storage outer warehouse 1, and will not cause interference to the environment inside the storage outer warehouse 1 in the case of multiple feedings, reducing the frequency of starting the dehumidifier 4 and the cooling component, maintaining the stability of the internal environment of the storage outer warehouse 1, reducing the storage cost, extending the storage period of the iron ore fines, and reducing the frequency of restocking the iron ore fines in the storage inner warehouse 8;The outer bin discharge port 6 is vertically slidably connected with a discharge hopper 16, and the discharge hopper 16 and the side wall of the outer bin discharge port 6 are slidably sealed by a sealing ring. A discharge channel 17 is provided at the bottom of the discharge hopper 16, and the top of the discharge channel 17 passes through the top of the discharge hopper 16, and the bottom of the discharge channel 17 passes through the bottom of the discharge hopper 16. A discharge plate 18 capable of closing the discharge channel 17 is fixed by welding or bolts below the outer bin discharge port 6. When the discharge hopper 16 is located inside the outer bin discharge port 6, the bottom of the discharge hopper 16 contacts the discharge plate 18, and the contact position of the two is sealed by a sealing gasket, so that the bottom of the discharge channel 17 is closed by the discharge plate 18, so that the discharge hopper 16 can close the outer bin discharge port 6. The discharge port 6 is blocked, and external moisture is not easy to enter the interior of the storage outer warehouse 1. The discharge plate 18 is located above the discharge conveyor 2, so that the iron ore concentrate falls on the discharge plate 18 after being discharged, and falls along the discharge plate 18 to the discharge conveyor 2. The inner warehouse discharge port 10 is vertically slidably connected with a lower sealing plug 19. The contact position of the lower sealing plug 19 and the inner warehouse discharge port 10 is slidably sealed by a sealing gasket to realize the opening and closing control of the inner warehouse discharge port 10. A reset spring 20 is provided between the lower sealing plug 19 and the storage inner warehouse 8. Under the action of the reset spring 20, the lower sealing plug 19 is kept in a closed state relative to the inner warehouse discharge port 10. A drive for discharging is fixed on the storage outer warehouse 1 by welding or bolts. The discharging power rod 21 that the hopper 16 slides upward to push open the lower sealing plug 19 can be specifically of a cylinder or electric cylinder structure, and its movable end is fixedly connected to the side wall of the discharging hopper 16 by welding or bolts, so that it drives the discharging hopper 16 to move up and down when it is vertically extended and retracted, and its top contacts the lower sealing plug 19 and pushes it open when the discharging hopper 16 slides upward, and the lower sealing plug 19 does not completely cover the top of the discharging hopper 16 in contact with it, so that when the lower sealing plug 19 is opened, the discharging channel 17 connects the interior of the storage inner bin 8 with the outside of the storage outer bin 1, and the side wall of the discharging hopper 16 isolates the discharging channel 17 from the interior of the storage outer bin 1. Such a structure allows the iron ore fines to be discharged directly from the storage inner bin 8 when it is discharged. The interior of bin 8 is discharged to the exterior of storage outer bin 1 through discharge channel 17, where it falls onto discharge plate 18 and continues to be discharged onto discharge conveyor 2. During this process, moisture from the outside does not enter the interior of storage outer bin 1, maintaining a stable storage environment within storage outer bin 1. This effectively isolates storage inner bin 8 from the external environment and ensures the stability of the environment within storage inner bin 8 during the discharge process. This structure ensures that the environment within storage outer bin 1 is not disturbed during the loading and unloading of iron ore concentrate, significantly reducing energy consumption to maintain a stable storage environment, extending the storage period of iron ore concentrate, reducing the frequency of restocking and storage of stored iron ore concentrate, reducing storage costs, and ensuring the quality of the iron ore concentrate.

[0036] Preferably, refer to Figure 6The bottom of the feed hopper 11 is conical. This structure allows the iron ore fines to automatically move toward the edge along the inclined side of the cone when they fall on the bottom of the feed hopper 11, making it difficult for the iron ore fines to gather and stay inside the feed hopper 11. The bottom of the feed channel 12 is connected to the edge of the cone. This structure allows the iron ore fines moving along the inclined side of the cone to be smoothly fed from the bottom of the feed channel 12, ensuring the continuity and smoothness of the feeding process.

[0037] Preferably, a plurality of pressure sensors 22 are provided at the bottom of the feed hopper 11, and the contact pressure sensor 22 structure commonly used in the existing market can be adopted. The pressure sensor 22 is electrically connected to the feed power rod 15. Such a structure makes it unnecessary to start the feed power rod 15 in advance when feeding iron ore concentrate. The iron ore concentrate directly enters the feed hopper 11 through the feed elevator 3. The pressure sensor 22 in the feed hopper 11 generates a signal and transmits it to the feed power rod 15, so that the feed power rod 15 starts automatically. Such a structure makes the sliding control of the high feed hopper 11 more convenient and accurate, without the need for human observation and control, thereby improving the continuity and accuracy of the feeding.

[0038] Preferably, a support rod 23 is fixed to the top of the storage inner bin 8 by welding or bolts, a sliding sleeve 24 is fixed to the support rod 23 by welding or bolts, and a sliding column 25 is fixed to the bottom of the upper sealing plug 13 by bonding or bolts. The sliding column 25 is slidably connected to the inside of the sliding sleeve 24, and the compression spring 14 is located between the bottom of the sliding column 25 and the bottom of the sliding sleeve 24. Such a structure allows the compression spring 14 to be accurately compressed when the upper sealing plug 13 is pushed downward, so that the subsequent sliding reset of the upper sealing plug 13 is more accurate and smooth.

[0039] Preferably, the bottom of the discharge plate 18 and the discharge hopper 16 are both inclined, and baffles 26 are symmetrically fixed on both sides of the discharge plate 18 by welding or integral molding. Such a structure allows the iron ore powder to automatically slide downward along the inclined direction when it falls from the bottom of the discharge hopper 16 onto the discharge plate 18 until it automatically slides onto the discharge conveyor 2, making the discharge of the iron ore powder smoother. The setting of the baffle 26 makes it difficult for the iron ore powder to leak out from the side of the discharge plate 18, thereby ensuring the smoothness and accuracy of the discharge.

[0040] Preferably, refer to Figure 7 The top of the discharge hopper 16 is fixed with a lower pipe head 27 by welding or bolts. A top rod 28 is provided inside the lower pipe head 27. The top height of the top rod 28 is higher than the top height of the lower pipe head 27. Figure 5Specifically, multiple connecting rods are fixed inside the lower tube head 27 by welding or bolts, and the top rod 28 is fixedly connected to the multiple connecting rods by welding or bolts. A discharge gap is left between the multiple connecting rods. When the discharge hopper 16 slides upward, the top rod 28 contacts the bottom of the lower sealing plug 19. This structure allows the top rod 28 to push open the lower sealing plug 19 when the discharge hopper 16 slides upward. At this time, a gap is left between the top of the lower tube head 27 and the lower sealing plug 19, so that the lower sealing plug 19 will not block the lower tube head 27 in contact with it, so that the iron ore powder can enter the lower tube head 27 from the gap, and then fall downward through the area between the multiple connecting rods, further ensuring the smoothness of the discharge.

[0041] Preferably, the bottom of the storage inner bin 8 is fixed with a connected upper tube head 29 by welding or bolts, and the lower sealing plug 19 is slidably connected to the inside of the upper tube head 29, so that the sliding sealing between the lower sealing plug 19 and the upper tube head 29 is better, and the lower tube head 27 is slidably sleeved on the outside of the upper tube head 29 when the discharge hopper 16 slides upward. Such a structure enables the lower tube head 27 to be slidably sleeved on the outside of the upper tube head 29 when the discharge hopper 16 slides upward to achieve communication between the two, thereby making the contact between the two more rigorous, and no iron ore powder will leak from the connection between the two, further improving the accuracy of the discharge.

[0042] Preferably, a sliding cavity 30 is fixed to the top of the storage inner bin 8 by welding or bolts, and the bottom of the sliding cavity 30 is open. A connecting column 31 is fixed to the lower sealing plug 19 by bonding or bolts. The top of the connecting column 31 passes through the opening and is slidably connected to the sliding cavity 30. The reset spring 20 is arranged between the top of the connecting column 31 and the top of the sliding cavity 30. Such a structure enables the reset spring 20 to be located at the top of the storage inner bin 8 and will not block the discharge of materials at the bottom, so that the reset spring 20 is accurately compressed when the lower sealing plug 19 is pushed open, thereby ensuring the accuracy and smoothness of the subsequent lower sealing plug 19 when it slides downward to reset.

[0043] Preferably, refer to Figure 3The cooling component includes a cooling water inlet pipe 32 and a cooling water outlet interlayer 33 arranged inside the rotating table 7. Specifically, a perforation is provided inside the rotating table 7, and the cooling water inlet pipe 32 is located inside the perforation, so that the rotating table 7 will not interfere with the internal cooling water inlet pipe 32 when the rotating table 7 rotates. The cooling water outlet interlayer 33 is located inside the side wall of the cooling water inlet pipe 32. Such a structure integrates the inlet and outlet pipes into one, and reduces the opening range of the perforation. The cooling water inlet pipe 32 is rotatably connected to a water inlet connector 34 through a bearing, and the water inlet connector 34 and the cooling water inlet pipe 32 are rotatably sealed by a sealing gasket. The cooling water outlet interlayer 33 is rotatably connected to a water outlet connector 35 through a bearing, and the water outlet connector 35 is maintained in a rotatably sealed connection with the cooling water outlet interlayer 33 by a sealing gasket. A cooling interlayer 36 is provided on the side wall of the storage inner bin 8, and the cooling interlayer 36 is used to cool the storage inner bin 8. The cooling interlayer 36 is connected to an inlet The water branch pipe 37 and the water outlet branch pipe 38, the water inlet branch pipe 37 is connected to the water inlet connector 34, and the water outlet branch pipe 38 is connected to the water outlet connector 35. With this structure, when the rotating table 7 drives multiple storage inner bins 8 to rotate, the water inlet connector 34 and the water outlet connector 35 also rotate synchronously, maintaining the connection between the cooling water inlet pipe 32 and the cooling water outlet interlayer 33 and the cooling interlayer 36, thereby realizing the real-time in and out of the rotating storage inner bin 8, ensuring the cooling effect of the storage inner bin 8 in the rotating state, and further providing a threaded pipe inside the cooling interlayer 36, the bottom of the threaded pipe is connected to the water inlet branch pipe 37, and the water outlet branch pipe 38 is located at the bottom of the cooling interlayer 36, so that the cooling water entering the cooling interlayer 36 flows upward along the threaded pipe to the top and then flows downward along the inside of the cooling interlayer 36. After cooling, it is discharged from the water outlet branch pipe 38 at the bottom, extending the flow time of the cooling water inside the cooling interlayer 36 and improving the cooling effect.

[0044] A storage process for producing iron ore concentrate comprises the following steps:

[0045] S1. Use the dehumidifier 4 and the cooling component to form a dry and low-temperature storage environment inside the storage outer warehouse 1. Specifically, a humidity sensor and a temperature sensor can be set inside the storage outer warehouse 1. When the humidity and temperature exceed the specified values, the dehumidifier 4 and the cooling component are automatically started to ensure the stability of the internal environment of the storage outer warehouse 1. The feed channel 12 on the feed hopper 11 is closed by the side wall of the outer warehouse feed port 5, and the discharge channel 17 on the discharge hopper 16 is closed by the discharge plate 18, so that the feed hopper 11 and the discharge hopper 16 respectively close the outer warehouse feed port 5 and the outer warehouse discharge port 6 to ensure the stability of the storage environment. When the iron ore concentrate is stored, the interior of the storage outer warehouse 1 is isolated from the external environment, ensuring the stability of the internal environment of the storage outer warehouse 1, so that the storage outer warehouse 1 acts as an insulating layer to isolate the storage inner warehouse 8 from the external environment, greatly extending the storage period of the iron ore concentrate inside the storage inner warehouse 8, and ensuring the storage effect;

[0046] S2. When the iron ore fines are fed from the feed hopper 11, the rotary table 7 rotates under the drive of the motor and gears, so that the inner bin feed port 9 on a certain storage inner bin 8 is aligned with the outer bin feed port 5, and the feed power rod 15 drives the feed hopper 11 to slide downward to push open the upper sealing plug 13. At this time, the feed channel 12 is opened, connecting the interior of the storage inner bin 8 with the outside of the storage outer bin 1. The side wall of the feed hopper 11 isolates the feed channel 12 from the interior of the storage outer bin 1, so that the external iron ore fines can directly enter the interior of the storage inner bin 8 along the feed channel 12 under the action of the feed elevator 3, without disturbing the storage environment inside the storage outer bin 1;

[0047] S3. After the iron ore concentrate is fed, the feed power rod 15 drives the feed hopper 11 to slide upward and reset, closing the outer bin feed port 5. The upper sealing plug 13 slides upward and resets under the action of the compression spring 14 to close the inner bin feed port 9, so that the iron ore concentrate is stored in a relatively closed environment without oxidation and deterioration.

[0048] S4. When the iron ore fines are discharged from the discharge hopper 16, the rotating table 7 rotates so that the inner bin discharge port 10 on a certain storage inner bin 8 is aligned with the outer bin discharge port 6, and the discharge power rod 21 drives the discharge hopper 16 to slide upward to push open the lower sealing plug 19. At this time, the discharge channel 17 is opened, connecting the interior of the storage inner bin 8 with the outside of the storage outer bin 1. The side wall of the discharge hopper 16 isolates the discharge channel 17 from the interior of the storage outer bin 1, so that the iron ore fines in the storage inner bin 8 fall directly along the discharge channel 17 onto the discharge plate 18 below the storage outer bin 1, and are discharged and transported by the discharge conveyor 2 without disturbing the storage environment inside the storage outer bin 1;

[0049] S5. After the iron ore concentrate is discharged, the discharge power rod 21 drives the discharge hopper 16 to slide downward and reset, closing the outer bin discharge port 6. The lower sealing plug 19 slides downward and resets under the action of the reset spring 20 to close the inner bin discharge port 10, so that the iron ore concentrate stored in the inner bin 8 can still be stored in a relatively closed environment and will not be oxidized and deteriorated.

[0050] Working principle: The present invention arranges a dehumidifier 4 and a cooling component inside the storage outer warehouse 1, so that a dry, low-temperature stable storage environment is formed inside the storage outer warehouse 1, thereby making the storage inner warehouse 8 storing the iron ore concentrate in a dry, low-temperature stable storage environment for a long time, and the external rain, snow or high temperature conditions will not interfere with the internal environment of the storage outer warehouse 1, avoiding the exposure of the iron ore concentrate to a humid and high-temperature environment during storage, reducing the oxidation and deterioration of the iron ore concentrate, reducing the amount of impurities generated during the storage process, and ensuring the quality of the iron ore concentrate storage; an outer warehouse feed port 5 and an outer warehouse discharge port 6 are arranged on the storage outer warehouse 1, and an inner warehouse feed port 9 and an inner warehouse discharge port 10 are arranged on the storage inner warehouse 8. When feeding, the rotating table 7 rotates so that the inner warehouse feed port 9 on a certain storage inner warehouse 8 is aligned with the outer warehouse feed port 5, and the feeding power rod 15 drives the feeding hopper 11 to slide downward to push open the upper sealing plug 13. At this time, the feeding channel 12 is opened, connecting the interior of the storage inner warehouse 8 with the outside of the storage outer warehouse 1, and the external iron ore concentrate is fed into the storage outer warehouse 1. The material in the inner storage bin 8 is fed into the outer storage bin 1 and the outer storage bin 1 ...

Claims

1. A storage device for producing iron ore concentrate, comprising a storage outer bin (1), a discharge conveyor (2), and a feed elevator (3), wherein a dehumidifier (4) and a cooling component are provided inside the storage outer bin (1), an outer bin feed port (5) for use with the feed elevator (3) is provided at the top of the storage outer bin (1), and an outer bin discharge port (6) for use with the discharge conveyor (2) is provided at the bottom of the storage outer bin (1), characterized in that: The storage outer bin (1) is internally connected to a rotating table (7), and a plurality of storage inner bins (8) are provided on the rotating table (7). The top of the storage inner bin (8) is provided with an inner bin feed port (9) that can be aligned with the outer bin feed port (5), and the bottom of the storage inner bin (8) is provided with an inner bin discharge port (10) that can be aligned with the outer bin discharge port (6). The outer bin feed port (5) is vertically connected to a feed hopper (11), and the side wall of the feed hopper (11) is provided with a feed channel (12) that can be closed by the side wall of the outer bin feed port (5). The inner bin feed port (9) is vertically connected to an upper sealing plug (13), and a compression spring (14) is provided between the upper sealing plug (13) and the storage inner bin (8). The storage outer bin (1 ) is provided with a feeding power rod (15) for driving the feeding hopper (11) to slide downward to push open the upper sealing plug (13); the outer bin discharge port (6) is vertically slidably connected to a discharging hopper (16); a discharging channel (17) is provided at the bottom of the discharging hopper (16); a discharging plate (18) capable of closing the discharging channel (17) is provided below the outer bin discharge port (6); the discharging plate (18) is located above the discharging conveyor (2); the inner bin discharge port (10) is vertically slidably connected to a lower sealing plug (19); a return spring (20) is provided between the lower sealing plug (19) and the storage inner bin (8); and the storage outer bin (1) is provided with a discharging power rod (21) for driving the discharging hopper (16) to slide upward to push open the lower sealing plug (19).

2. The storage device for producing iron ore concentrate according to claim 1, characterized in that: The bottom of the feed hopper (11) is conical, and the feed channel (12) is connected to the edge of the cone.

3. The storage device for producing iron ore concentrate according to claim 2, characterized in that: A plurality of pressure sensors (22) are provided at the bottom of the feed hopper (11), and the pressure sensors (22) are electrically connected to the feed power rod (15).

4. The storage device for producing iron ore concentrate according to claim 1, characterized in that: A support rod (23) is provided on the top of the storage inner bin (8), a sliding sleeve (24) is provided on the support rod (23), a sliding column (25) is provided on the bottom of the upper sealing plug (13), the sliding column (25) is slidably connected to the inside of the sliding sleeve (24), and the compression spring (14) is located between the bottom of the sliding column (25) and the bottom of the sliding sleeve (24).

5. The storage device for producing iron ore concentrate according to claim 1, characterized in that: The bottoms of the discharge plate (18) and the discharge hopper (16) are both inclined, and baffles (26) are symmetrically provided on both sides of the discharge plate (18).

6. The storage device for producing iron ore concentrate according to claim 1, characterized in that: A communicating lower pipe head (27) is provided at the top of the discharge hopper (16), and a push rod (28) is provided inside the lower pipe head (27). When the discharge hopper (16) slides upward, the push rod (28) contacts the bottom of the lower sealing plug (19).

7. The storage device for producing iron ore concentrate according to claim 6, characterized in that: The bottom of the storage inner bin (8) is provided with a connected upper tube head (29), the lower sealing plug (19) is slidably connected to the inside of the upper tube head (29), and when the discharge hopper (16) slides upward, the lower tube head (27) is slidably sleeved on the outside of the upper tube head (29).

8. The storage device for producing iron ore concentrate according to claim 1, characterized in that: A sliding cavity (30) is provided on the top of the storage inner bin (8), a connecting column (31) is provided on the lower sealing plug (19), the top of the connecting column (31) is slidably connected in the sliding cavity (30), and the return spring (20) is arranged between the top of the connecting column (31) and the top of the sliding cavity (30).

9. The storage device for producing iron ore concentrate according to claim 1, characterized in that: The cooling component comprises a cooling water inlet pipe (32) and a cooling water outlet interlayer (33) arranged inside the rotating table (7); the cooling water outlet interlayer (33) is located inside the side wall of the cooling water inlet pipe (32); a water inlet connector (34) is rotatably connected to the cooling water inlet pipe (32); a water outlet connector (35) is rotatably connected to the cooling water outlet interlayer (33); a cooling interlayer (36) is provided on the side wall of the storage inner bin (8); a water inlet branch pipe (37) and a water outlet branch pipe (38) are connected to the cooling interlayer (36); the water inlet branch pipe (37) is connected to the water inlet connector (34), and the water outlet branch pipe (38) is connected to the water outlet connector (35).

10. A storage process for producing iron ore concentrate, characterized in that: The steps include: S1. A dehumidifier (4) and a cooling component are used to form a dry, low-temperature storage environment inside the storage outer bin (1). The feed channel (12) on the feed hopper (11) is closed by the side wall of the outer bin feed port (5), and the discharge channel (17) on the discharge hopper (16) is closed by the discharge plate (18), so that the feed hopper (11) and the discharge hopper (16) respectively close the outer bin feed port (5) and the outer bin discharge port (6), thereby ensuring the stability of the storage environment. S2. When the iron ore concentrate is fed from the feed hopper (11), the rotary table (7) rotates so that the inner bin feed port (9) on a certain storage inner bin (8) is aligned with the outer bin feed port (5), and the feed power rod (15) drives the feed hopper (11) to slide downward to push open the upper sealing plug (13). At this time, the feed channel (12) is opened, connecting the interior of the storage inner bin (8) with the exterior of the storage outer bin (1). Under the action of the feed elevator (3), the external iron ore concentrate directly enters the interior of the storage inner bin (8) along the feed channel (12) without disturbing the storage environment inside the storage outer bin (1); S3. After the iron ore concentrate is fed, the feed power rod (15) drives the feed hopper (11) to slide upward and reset, closing the outer bin feed port (5). The upper sealing plug (13) slides upward and resets under the action of the compression spring (14) to close the inner bin feed port (9), so that the iron ore concentrate is stored in a relatively closed environment without oxidation and deterioration. S4. When the iron ore fines are discharged from the discharge hopper (16), the rotating table (7) rotates so that the inner bin discharge port (10) on a certain storage inner bin (8) is aligned with the outer bin discharge port (6), and the discharge power rod (21) drives the discharge hopper (16) to slide upward to push open the lower sealing plug (19). At this time, the discharge channel (17) is opened, connecting the interior of the storage inner bin (8) with the exterior of the storage outer bin (1). The iron ore fines in the storage inner bin (8) fall directly onto the discharge plate (18) below the storage outer bin (1) along the discharge channel (17), and are discharged and transported by the discharge conveyor (2), without causing interference to the storage environment inside the storage outer bin (1); S5. After the iron ore concentrate is discharged, the discharge power rod (21) drives the discharge hopper (16) to slide downward and reset, closing the outer bin discharge port (6). The lower sealing plug (19) slides downward and resets under the action of the reset spring (20) to close the inner bin discharge port (10), so that the iron ore concentrate stored in the inner bin (8) is still stored in a relatively closed environment and will not be oxidized and deteriorated.

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