Storage equipment and process for producing fine iron powder

Abstract

The invention discloses storage equipment and process for producing fine iron powder, and mainly relates to the field of fine iron powder storage. Comprising an outer storage bin, a discharging conveyor and a feeding elevator, a dehumidifier and a cooling assembly are arranged in the outer storage bin, an outer bin feeding port used in cooperation with the feeding elevator is formed in the top of the outer storage bin, and an outer bin discharging port used in cooperation with the discharging conveyor is formed in the bottom of the outer storage bin; and a rotating table is rotationally connected to the interior of the outer storage bin, and a plurality of inner storage bins are arranged on the rotating table. The storage device has the beneficial effects that the technical problem that the quality of the fine iron powder is affected due to the fact that the fine iron powder is prone to oxidative deterioration in the storage process can be solved, the fine iron powder is prevented from being exposed in the environment with high humidity and temperature in the storage process by strictly controlling the storage environment of the fine iron powder, the quality of the fine iron powder is guaranteed, the storage time is prolonged, and the storage efficiency is improved. And the storage cost is reduced.

Description

Technical Field

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

[0002] Iron concentrate is made from iron ore through processes such as crushing, grinding, magnetic separation, and drying. The particle size of iron concentrate is relatively small, and after production, it needs to be stored in a storage device. When the current storage device and storage process are used to store iron concentrate, after a period of storage, the iron concentrate is prone to oxidation and deterioration, increasing the number of impurities inside the iron concentrate, having a greater impact on downstream processing operations with high purity requirements, resulting in a decline in the quality of iron concentrate, seriously affecting the sale and use of iron concentrate after production. Therefore, there is a need for further improvement in the storage device and process of iron concentrate. Summary of the Invention

[0003] The purpose of the present invention is to provide a storage device and process for producing iron concentrate, which can solve the technical problem that iron concentrate is prone to oxidation and deterioration during storage, affecting the quality of iron concentrate. By strictly controlling the storage environment of iron concentrate, it avoids the iron concentrate being exposed to environments with high humidity and temperature during storage, ensures the quality of iron concentrate, extends the storage time, and reduces the storage cost.

[0004] To achieve the above object, the present invention is realized through the following technical solutions: A storage device for producing iron concentrate powder, comprising an outer storage bin, a discharge conveyor, and a feeding elevator. A dehumidifier and a cooling component are arranged inside the outer storage bin. An outer bin feeding port for cooperating with the feeding elevator is arranged at the top of the outer storage bin. An outer bin discharge port for cooperating with the discharge conveyor is arranged at the bottom of the outer storage bin. A rotating table is rotatably connected inside the outer storage bin. A plurality of inner storage bins are arranged on the rotating table. An inner bin feeding port capable of aligning with the outer bin feeding port is arranged at the top of the inner storage bin. An inner bin discharge port capable of aligning with the outer bin discharge port is arranged at the bottom of the inner storage bin. A feeding hopper is slidably connected vertically at the outer bin feeding port. A feeding channel capable of being closed by the side wall of the outer bin feeding port is arranged on the side wall of the feeding hopper. An upper sealing plug is slidably connected vertically at the inner bin feeding port. A compression spring is arranged between the upper sealing plug and the inner storage bin. A feeding power rod for driving the feeding hopper to slide downward to push open the upper sealing plug is arranged on the outer storage bin. When the upper sealing plug is opened, the feeding channel communicates the inside of the inner storage bin with the outside of the outer storage bin. A discharge hopper is slidably connected vertically at the outer bin discharge port. A discharge channel is arranged at the bottom of the discharge hopper. A discharge plate capable of closing the discharge channel is arranged below the outer bin discharge port. The discharge plate is located above the discharge conveyor. A lower sealing plug is slidably connected vertically at the inner bin discharge port. A return spring is arranged between the lower sealing plug and the inner storage bin. A discharge power rod for driving the discharge hopper to slide upward to push open the lower sealing plug is arranged on the outer storage bin. When the lower sealing plug is opened, the discharge channel communicates the inside of the inner storage bin with the outside of the outer storage bin.

[0005] Further, the bottom of the feeding hopper is conical, and the feeding channel communicates with the edge of the cone.

[0006] Further, a plurality of pressure sensors are arranged at the bottom of the feeding hopper, and the pressure sensors are electrically connected to the feeding power rod.

[0007] Further, a support rod is arranged at the top of the inner storage bin. A sliding sleeve is arranged on the support rod. A sliding column is arranged at the bottom of the upper sealing plug. The sliding column is slidably connected inside the sliding sleeve. The compression spring is located between the bottom of the sliding column and the bottom of the sliding sleeve.

[0008] Further, both the bottom of the discharge plate and the bottom of the discharge hopper are inclined. Baffles are symmetrically arranged on both sides of the discharge plate.

[0009] Further, a communicating lower pipe head is arranged at the top of the discharge hopper. A top rod is arranged inside the lower pipe head. When the discharge hopper slides upward, the top rod contacts the bottom of the lower sealing plug.

[0010] Further, an upper pipe head is provided at the bottom of the storage inner bin, the lower sealing plug is slidably connected inside the upper pipe head, and when the discharge hopper slides upward, the lower pipe head is slidably sleeved outside the upper pipe head.

[0011] Further, a sliding cavity is provided at 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 inside the sliding cavity, and a return spring is arranged between the top of the connecting column and the top of the sliding cavity.

[0012] Further, the temperature reduction 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, a water inlet connector is rotatably communicated with the cooling water inlet pipe, a water outlet connector is rotatably communicated with the cooling water outlet interlayer, a cooling interlayer is provided on the side wall of the storage inner bin, and a water inlet branch pipe and a water outlet branch pipe are communicated with the cooling interlayer. The water inlet branch pipe is communicated with the water inlet connector, and the water outlet branch pipe is communicated with the water outlet connector.

[0013] A storage process for producing iron concentrate powder includes the following steps: S1. Use a dehumidifier and a temperature reduction component to create a dry and low-temperature storage environment inside the storage outer bin. The feeding channel on the feeding hopper is closed by the side wall of the outer bin feeding port, and the discharging channel on the discharging hopper is closed by the discharging plate, so that the feeding hopper and the discharging hopper respectively close the outer bin feeding port and the outer bin discharging port, ensuring the stability of the storage environment. S2. When the iron concentrate powder is fed from the feeding hopper, the rotating table rotates, so that the inner bin feeding port on a certain storage inner bin is aligned with the outer bin feeding port. The feeding power rod drives the feeding hopper to slide downward to push open the upper sealing plug. At this time, the feeding channel is opened, connecting the inside of the storage inner bin with the outside of the storage outer bin. The external iron concentrate powder directly enters the inside of the storage inner bin along the feeding channel under the action of the feeding elevator, without disturbing the storage environment inside the storage outer bin. S3. After the iron concentrate powder is fed, the feeding power rod drives the feeding hopper to slide upward and reset, closing the outer bin feeding port. The upper sealing plug slides upward and resets under the action of the compression spring to close the inner bin feeding port, so that the iron concentrate powder is stored in a relatively closed environment and will not oxidize and deteriorate. S4. When the iron concentrate powder is discharged from the discharging hopper, the rotating table rotates, so that the inner bin discharging port on a certain storage inner bin is aligned with the outer bin discharging port. The discharging power rod drives the discharging hopper to slide upward to push open the lower sealing plug. At this time, the discharging channel is opened, connecting the inside of the storage inner bin with the outside of the storage outer bin. The iron concentrate powder in the storage inner bin directly falls on the discharging plate below the storage outer bin along the discharging channel, and is discharged and transported by the discharging conveyor, without disturbing the storage environment inside the storage outer bin. After the iron concentrate powder discharging is completed, the discharging power rod drives the discharging hopper to slide downward and reset, closing the discharging opening of the outer bin. The lower sealing plug slides downward and resets under the action of the reset spring to close the discharging opening of the inner bin, so that the iron concentrate powder in other storage inner bins is still stored in a relatively closed environment and will not oxidize and deteriorate.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. The present invention is provided with a dehumidifier and a cooling component inside the storage outer bin, so that a stable storage environment of dryness and low temperature is formed inside the storage outer bin. Furthermore, the storage inner bin storing iron concentrate powder is in a stable storage environment of dryness and low temperature for a long time. The external rain, snow or high temperature conditions will not interfere with the internal environment of the storage outer bin, avoiding the exposure of iron concentrate powder to a humid and high temperature environment during storage, reducing the oxidation and deterioration of iron concentrate powder, reducing the generation amount of impurities during storage, and ensuring the quality of iron concentrate powder storage. 2. The storage outer bin is provided with an outer bin feeding port and an outer bin discharging port, and the storage inner bin is provided with an inner bin feeding port and an inner bin discharging port. During feeding, the rotating table rotates, so that the inner bin feeding port on a certain storage inner bin is aligned with the outer bin feeding port. The feeding power rod drives the feeding hopper to slide downward to push open the upper sealing plug. At this time, the feeding channel is opened, connecting the inside of the storage inner bin with the outside of the storage outer bin. The external iron concentrate powder enters the inside of the storage inner bin directly along the feeding channel under the action of the feeding elevator, without interfering with the storage environment inside the storage outer bin. During discharging, the rotating table rotates, so that the inner bin discharging port on a certain storage inner bin is aligned with the outer bin discharging port. The discharging power rod drives the discharging hopper to slide upward to push open the lower sealing plug. At this time, the discharging channel is opened, connecting the inside of the storage inner bin with the outside of the storage outer bin. The iron concentrate powder in the storage inner bin directly falls on the discharging plate below the storage outer bin and is transported by the discharging conveyor for discharging, without interfering with the storage environment inside the storage outer bin. Such a structure enables the internal environment of the storage outer bin not to communicate with the outside during the feeding and discharging processes of iron concentrate powder, thereby ensuring the stability of the internal environment of the storage outer bin, enabling the iron concentrate powder to be stored for a long time without oxidation and deterioration, ensuring the quality of iron concentrate powder storage, extending the storage time, and reducing the storage cost. Description of the Drawings

[0015] Attached Figure 1 is the three-dimensional structure schematic diagram of the present invention.

[0016] Attached Figure 2 is the right view of the present invention.

[0017] Attached Figure 3 is the attached Figure 2 cross-sectional view in the A-A direction of the present invention.

[0018] AttachedFigure 4 is a sectional view taken along the line B-B in Figure 3 the accompanying drawings of the present invention.

[0019] The accompanying Figure 5 is a sectional view taken along the line C-C in Figure 3 the accompanying drawings of the present invention.

[0020] The accompanying Figure 6 is a partial enlarged view of part D in Figure 3 the accompanying drawings of the present invention.

[0021] The accompanying Figure 7 is a partial enlarged view of part E in Figure 3 the accompanying drawings of the present invention.

[0022] Reference numerals shown in the accompanying drawings: 1, storage outer bin; 2, discharge conveyor; 3, feed elevator; 4, dehumidifier; 5, outer bin feed inlet; 6, outer bin discharge outlet; 7, rotating table; 8, storage inner bin; 9, inner bin feed inlet; 10, inner bin discharge outlet; 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, ejector rod; 29, upper pipe head; 30, sliding cavity; 31, connecting column; 32, cooling water inlet pipe; 33, cooling water outlet sandwich layer; 34, water inlet connector; 35, water outlet connector; 36, cooling sandwich layer; 37, water inlet branch pipe; 38, water outlet branch pipe. Detailed embodiments

[0023] The present invention will be further described below in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and not to limit the scope of the present invention. In addition, it 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 also fall within the scope defined by this application.

[0024] Refer to Figure 1 and Figure 2, the present invention relates to a storage device and process for producing iron concentrate powder. The main structure of the storage device includes a storage outer bin 1, a discharge conveyor 2, and a feeding elevator 3. Multiple legs are provided at the bottom of the storage outer bin 1 to improve the structural stability of the storage outer bin 1. The discharge conveyor 2 is generally a belt conveyor, so that the iron concentrate powder after discharge can be conveyed to a designated position by the discharge conveyor 2. The feeding elevator 3 generally adopts a bucket elevator, which is used to lift the produced iron concentrate powder to a high place for convenient storage from the top into the interior of the storage outer bin 1. A dehumidifier 4 and a temperature reduction component are provided inside the storage outer bin 1. The dehumidifier 4 can adopt a common dehumidification structure on the market to discharge the moisture inside the storage outer bin 1, ensuring a dry environment is formed inside the storage outer bin 1 and avoiding the oxidation and deterioration caused by the contact between moisture and iron concentrate powder. The temperature reduction component can cool the inside of the storage outer bin 1. After the iron concentrate powder is dried, its internal temperature is relatively high. If not cooled in time, a high-temperature environment may be formed inside the piled-up iron concentrate powder, leading to the oxidation of the internal iron concentrate powder. The temperature reduction component can control the temperature of the stored iron concentrate powder at a relatively low level, reducing the occurrence of oxidation and deterioration; At the top of the storage outer bin 1, there is an outer bin feed inlet 5 for cooperating with the feed elevator 3. The outer bin feed inlet 5 penetrates through the side wall of the storage outer bin 1. After the feed elevator 3 lifts the iron ore concentrate to a high place, it drops to the outer bin feed inlet 5, so that the iron ore concentrate is stored inside the storage outer bin 1. At the bottom of the storage outer bin 1, there is an outer bin discharge outlet 6 for cooperating with the discharge conveyor 2. The outer bin discharge outlet 6 penetrates through the side wall of the storage outer bin 1. The stored iron ore concentrate is discharged from the outer bin discharge outlet 6 to realize the discharge of the iron ore concentrate. Inside the storage outer bin 1, there is a rotating table 7 rotatably connected by bearings. The rotating table 7 is driven to rotate by using the cooperation of an existing motor and gears. Specifically, meshing gears are provided on both the output shaft of the motor and the outside of the rotating table 7. The rotation of the rotating table 7 is driven by the cooperation of the motor and the meshing gears. The connection between the rotating table 7 and the storage outer bin 1 is rotationally sealed by a gasket. On the rotating table 7, there are a plurality of storage inner bins 8. Specifically, a support plate is fixed on the rotating table 7 by welding or bolts. A plurality of storage inner bins 8 are all fixed on the support plate by welding or bolts. The bottom of the storage inner bin 8 penetrates through the support plate and extends downward. The bottom of the storage inner bin 8 is conical, making it easier for the internal iron ore concentrate to be concentrated and discharged. Preferably, a fixing plate is arranged between the middles of the plurality of storage inner bins 8, and a support plate is arranged on the side wall of the storage outer bin 1. The fixing plate is used to connect the plurality of storage inner bins 8. Rollers are arranged at the bottom of the fixing plate, and the rollers are in rolling contact with the support plate, further improving the firmness of the rotating structure of the plurality of storage inner bins 8. At the top of each storage inner bin 8, there is an inner bin feed inlet 9 that can be aligned with the outer bin feed inlet 5. At the bottom of the storage inner bin 8, there is an inner bin discharge outlet 10 that can be aligned with the outer bin discharge outlet 6. Such a structure enables each storage inner bin 8 to be driven to rotate by the rotating table 7 when it needs to be fed or discharged, so that the inner bin feed inlet 9 on it is aligned with the outer bin feed inlet 5, and the inner bin discharge outlet 10 is aligned with the outer bin discharge outlet 6, thus facilitating unified feeding from the outer bin feed inlet 5 on the storage outer bin 1 and discharging from the outer bin discharge outlet 6. Such a setting can only set one feed elevator 3 at the outer bin feed inlet 5 of the storage outer bin 1 and one discharge conveyor 2 at the outer bin discharge outlet 6, greatly reducing the number of feeding and discharging equipment, reducing the storage cost, and at the same time reducing the number of openings on the storage outer bin 1 and improving the overall sealing performance of the storage outer bin 1; A feed hopper 11 is slidably connected vertically at the outer bin feed inlet 5. The feed hopper 11 is in the shape of a funnel that is wider at the top and narrower at the bottom, so that the iron ore concentrate can be fed more smoothly and concentrated along the feed hopper 11. A gasket is arranged between the side wall of the feed hopper 11 and the side wall of the outer bin feed inlet 5, making the sealing performance of their relative sliding structure better. There is a feed channel 12 on the side wall of the feed hopper 11 that can be closed by the side wall of the outer bin feed inlet 5. Refer to Figure 4, the top of the feed channel 12 penetrates through the top of the feed hopper 11 and the bottom penetrates through the side wall of the feed hopper 11. Such a structure causes the bottom of the feed channel 12 on the side wall of the feed hopper 11 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 and preventing external moisture from entering the interior of the storage outer bin 1 through the feed channel 12, ensuring the stability of the storage environment inside the storage outer bin 1. A top sealing plug 13 is slidably connected to the inner bin feed port 9 in the vertical direction. The top sealing plug 13 is slidably sealed with the inner bin feed port 9 to achieve the opening and closing control of the inner bin feed port 9. A compression spring 14 is provided between the top sealing plug 13 and the storage inner bin 8. Under the elastic force of the compression spring 14, the top sealing plug 13 maintains a closed state for the inner bin feed port 9, improving the sealing effect. Preferably, the top sealing plug 13 has a shape that is narrower at the top and wider at the bottom, so that the top sealing plug 13 is pressed and fixed at the inner bin feed port 9 from the inside out. A feed power rod 15 for driving the feed hopper 11 to slide downward to push open the top sealing plug 13 is fixed to the storage outer bin 1 by welding or bolts. Specifically, the feed power rod 15 can be of a cylinder or an electric cylinder structure. Its movable end is fixed to the side wall of the feed hopper 11 by welding or bolts. Through its vertical telescopic movement, the feed hopper 11 is driven to move up and down. When it moves downward, the bottom of the feed hopper 11 contacts the top sealing plug 13 and pushes it downward to open, 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, making the feed channel 12 communicate the interior of the storage inner bin 8 with the exterior of the storage outer bin 1 when the top sealing plug 13 is opened, while the side wall of the feed hopper 11 isolates the feed channel 12 from the interior space of the storage outer bin 1. In such a structure, when iron ore concentrate is fed, the iron ore concentrate directly enters the storage inner bin 8 through the feed channel 12, and the storage outer bin 1 always maintains an isolated state from the external environment, preventing external moisture from entering the interior of the storage outer bin 1 during the iron ore concentrate feeding process, ensuring the stability of the environment in the storage outer bin 1. In the case of multiple feedings, it will not interfere with the environment inside the storage outer bin 1, reducing the startup frequency of the dehumidifier 4 and the cooling component, maintaining the stability of the internal environment of the storage outer bin 1, reducing the storage cost, extending the storage period of the iron ore concentrate, and reducing the frequency of replacing the iron ore concentrate stored in the interior of the storage inner bin 8;A discharge hopper 16 is slidably connected vertically at the external bin discharge port 6. The discharge hopper 16 and the side wall of the external 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. The top of the discharge channel 17 penetrates through the top of the discharge hopper 16, and the bottom of the discharge channel 17 penetrates through the bottom of the discharge hopper 16. A discharge plate 18 capable of closing the discharge channel 17 is fixed below the external bin discharge port 6 by welding or bolts. When the discharge hopper 16 is located inside the external bin discharge port 6, the bottom of the discharge hopper 16 contacts the discharge plate 18, and the contact position between the two is sealed by a gasket, so that the bottom of the discharge channel 17 is closed by the discharge plate 18, and the discharge hopper 16 plugs the external bin discharge port 6, and moisture from the outside is not likely to enter the inside of the storage external bin 1. The discharge plate 18 is located above the discharge conveyor 2, so that the iron concentrate powder falls on the discharge plate 18 after discharging and then falls onto the discharge conveyor 2 along the discharge plate 18. A lower sealing plug 19 is slidably connected vertically at the internal bin discharge port 10. The contact position between the lower sealing plug 19 and the internal bin discharge port 10 is slidably sealed by a gasket to realize the opening and closing control of the internal bin discharge port 10. A return spring 20 is provided between the lower sealing plug 19 and the storage internal bin 8. Under the action of the return spring 20, the lower sealing plug 19 maintains the closed state of the internal bin discharge port 10. A discharge power rod 21 for driving the discharge hopper 16 to slide upward to push open the lower sealing plug 19 is fixed on the storage external bin 1 by welding or bolts. Specifically, a cylinder or an electric cylinder structure can be used. Its movable end is fixedly connected to the side wall of the discharge hopper 16 by welding or bolts, so that when it expands and contracts vertically, it drives the discharge hopper 16 to move up and down. When the discharge hopper 16 slides upward, its top contacts the lower sealing plug 19 and pushes it open. The lower sealing plug 19 does not completely cover the top of the discharge hopper 16 in contact with it, so that when the lower sealing plug 19 is opened, the discharge channel 17 communicates the inside of the storage internal bin 8 with the outside of the storage external bin 1, and the side wall of the discharge hopper 16 isolates the discharge channel 17 from the inside of the storage external bin 1. Such a structure enables the iron concentrate powder to be directly discharged from the inside of the storage internal bin 8 to the outside of the storage external bin 1 through the discharge channel 17 when discharging, and then continues to be discharged onto the discharge conveyor 2 after falling on the discharge plate 18. During this process, moisture from the outside does not enter the inside of the storage external bin 1, so that a stable storage environment is maintained inside the storage external bin 1, realizing the effective isolation between the storage internal bin 8 and the external environment, ensuring the stability of the environment inside the storage internal bin 8 during the discharging process. The above structure enables the iron concentrate powder not to interfere with the internal environment of the storage external bin 1 during the feeding and discharging processes, greatly reducing the energy consumption for maintaining the stability of the storage environment, extending the storage period of the iron concentrate powder, reducing the frequency of replacing the stored iron concentrate powder in the inventory, reducing the storage cost, and ensuring the quality of the iron concentrate powder.;

[0025] Preferably, referring to Figure 6, the bottom of the feed hopper 11 is conical. Such a structure enables the iron ore powder to automatically move along the inclined conical side towards the edge position when it falls on the bottom of the feed hopper 11 after feeding, so that the iron ore powder is not likely to accumulate and stay inside the feed hopper 11. The bottom of the feed channel 12 is connected to the edge of the cone. Such a structure enables the iron ore powder moving along the inclined conical side to smoothly feed from the bottom of the feed channel 12, ensuring the continuity and smoothness of the feeding process.

[0026] Preferably, a plurality of pressure sensors 22 are provided at the bottom of the feed hopper 11. The structure of the contact pressure sensor 22 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 enables the feed power rod 15 not to be started in advance when the iron ore powder is fed. The iron ore powder directly enters the feed hopper 11 through the feed elevator 3. After the pressure sensor 22 in the feed hopper 11 generates a signal, it transmits the signal to the feed power rod 15, causing the feed power rod 15 to start automatically. Such a structure makes the sliding control of the high-positioned feed hopper 11 more convenient and accurate, without the need for manual observation and control, improving the continuity and accuracy of feeding.

[0027] 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. The bottom of the upper sealing plug 13 is fixed with a sliding column 25 by bonding or bolts. The sliding column 25 is slidably connected inside the sliding sleeve 24. 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 enables the compression spring 14 to be accurately compressed when the upper sealing plug 13 is pushed downwards, making the subsequent sliding reset of the upper sealing plug 13 more accurate and smooth.

[0028] Preferably, the bottoms of the discharge plate 18 and the discharge hopper 16 are both inclined. The two sides of the discharge plate 18 are symmetrically fixed with baffles 26 by welding or integrally formed. Such a structure enables the iron ore powder to automatically slide down 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 baffles 26 makes the iron ore powder not likely to leak from the side of the discharge plate 18, ensuring the smoothness and accuracy of discharge.

[0029] Preferably, referring to Figure 7 , a communicating lower pipe head 27 is fixed to the top of the discharge hopper 16 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. Referring to Figure 5, specifically, a plurality of connecting rods are fixed inside the lower pipe head 27 by welding or bolts. The ejector rod 28 is fixedly connected to the plurality of connecting rods by welding or bolts. A gap for discharging materials is left between the plurality of connecting rods. When the discharge hopper 16 slides upward, the ejector rod 28 contacts the bottom of the lower sealing plug 19. Such a structure enables the ejector 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 pipe head 27 and the lower sealing plug 19, so that the lower sealing plug 19 does not block the lower pipe head 27 in contact with it, thereby enabling the iron concentrate powder to enter the lower pipe head 27 from the gap and then fall downward through the area between the plurality of connecting rods, further ensuring the smoothness of discharging.

[0030] Preferably, an upper pipe head 29 is fixedly connected to the bottom of the storage inner bin 8 by welding or bolts. The lower sealing plug 19 is slidably connected inside the upper pipe head 29, making the sliding sealing performance between the lower sealing plug 19 and the upper pipe head 29 better. When the discharge hopper 16 slides upward, the lower pipe head 27 is slidably sleeved outside the upper pipe head 29. Such a structure enables the lower pipe head 27 to be slidably sleeved outside the upper pipe head 29 when the discharge hopper 16 slides upward to achieve the connection between the two, thereby making the contact mode between the two more tight and preventing the iron concentrate powder from leaking from the connection between the two, further improving the accuracy of discharging.

[0031] Preferably, a sliding cavity 30 is fixedly connected to the top of the storage inner bin 8 by welding or bolts. The bottom of the sliding cavity 30 is provided with an open end. A connecting column 31 is fixedly connected to the lower sealing plug 19 by bonding or bolts. The top of the connecting column 31 passes through the open end and is slidably connected inside the sliding cavity 30. The return 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 return spring 20 to be located at the top of the storage inner bin 8, without blocking the discharging at the bottom, and enables the return spring 20 to be accurately compressed when the lower sealing plug 19 is pushed open, ensuring the accuracy and smoothness when the lower sealing plug 19 slides downward to reset later.

[0032] Preferably, referring to Figure 3, the temperature reduction component includes a cooling water inlet pipe 32 and a cooling water outlet sandwich 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 during rotation. The cooling water outlet sandwich 33 is located inside the side wall of the cooling water inlet pipe 32. Such a structure integrates the inlet and outlet water pipelines into one, reducing the opening range of the perforation. The cooling water inlet pipe 32 is rotationally connected to a water inlet connector 34 through a bearing, and the water inlet connector 34 and the cooling water inlet pipe 32 are rotationally sealed through a gasket. The cooling water outlet sandwich 33 is rotationally connected to a water outlet connector 35 through a bearing, and the water outlet connector 35 maintains rotational sealing connection with the cooling water outlet sandwich 33 through a gasket. A cooling sandwich 36 is provided on the side wall of the storage inner bin 8, and the cooling sandwich 36 is used to cool the storage inner bin 8. An inlet branch pipe 37 and an outlet branch pipe 38 are connected to the cooling sandwich 36. The inlet branch pipe 37 is connected to the water inlet connector 34, and the outlet branch pipe 38 is connected to the water outlet connector 35. In such a 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 state between the cooling water inlet pipe 32, the cooling water outlet sandwich 33 and the cooling sandwich 36, so as to realize the real-time inflow and outflow of cooling water in the rotating storage inner bin 8, ensuring the cooling effect of the storage inner bin 8 in the rotating state. Further, a threaded pipe is arranged inside the cooling sandwich 36. The bottom of the threaded pipe is connected to the inlet branch pipe 37, and the outlet branch pipe 38 is located at the bottom of the cooling sandwich 36, so that the cooling water entering the inside of the cooling sandwich 36 flows upward along the threaded pipe to the top and then flows downward along the inside of the cooling sandwich 36, and is discharged from the outlet branch pipe 38 at the bottom after cooling, extending the flow time of the cooling water inside the cooling sandwich 36 and improving the cooling and temperature reduction effect.

[0033] A storage process for producing iron concentrate powder includes the following steps: S1. Use a dehumidifier 4 and a temperature reduction component to form a dry and low-temperature storage environment inside the storage outer bin 1. Specifically, a humidity sensor and a temperature sensor can be arranged inside the storage outer bin 1. When the humidity and temperature exceed the specified values, the dehumidifier 4 and the temperature reduction component are automatically started to ensure the stability of the internal environment of the storage outer bin 1. The feeding channel 12 on the feeding hopper 11 is blocked by the side wall of the outer bin feeding port 5, and the discharging channel 17 on the discharging hopper 16 is blocked by the discharging plate 18, so that the feeding hopper 11 and the discharging hopper 16 respectively block the outer bin feeding port 5 and the outer bin discharging port 6, ensuring the stability of the storage environment. When storing iron concentrate powder, the inside of the storage outer bin 1 is isolated from the external environment, ensuring the stability of the internal environment of the storage outer bin 1. Thus, the storage outer bin 1 serves as an isolation layer to isolate the storage inner bin 8 from the external environment, greatly extending the storage period of the iron concentrate powder inside the storage inner bin 8 and ensuring the storage effect; When iron ore concentrate is fed from the feed hopper 11, the rotating table 7 rotates driven by 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. 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 inside 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 inside of the storage outer bin 1, so that the external iron ore concentrate directly enters the inside 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; After the iron ore concentrate feeding is completed, 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 and will not oxidize and deteriorate; When the iron ore concentrate is 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. 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 inside 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 inside of the storage outer bin 1, so that the iron ore concentrate in the storage inner bin 8 directly falls on the discharge plate 18 below the storage outer bin 1 along the discharge channel 17, and the discharge conveyor 2 is used for discharging and transporting, without disturbing the storage environment inside the storage outer bin 1; After the iron ore concentrate discharging is completed, 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 in other storage inner bins 8 is still stored in a relatively closed environment and will not oxidize and deteriorate; Working principle: A dehumidifier 4 and a cooling component are arranged inside the storage outer bin 1 of the present invention, so as to form a stable storage environment with dryness and low temperature inside the storage outer bin 1. Furthermore, the storage inner bin 8 storing iron ore concentrate is in the stable storage environment with dryness and low temperature for a long time. The external rain, snow or high temperature conditions will not interfere with the internal environment of the storage outer bin 1, avoiding the exposure of iron ore concentrate to a humid and high-temperature environment during storage, reducing the oxidation and deterioration of iron ore concentrate, reducing the generation amount of impurities during storage, and ensuring the quality of iron ore concentrate storage; An outer bin feed inlet 5 and an outer bin discharge outlet 6 are arranged on the storage outer bin 1, and an inner bin feed inlet 9 and an inner bin discharge outlet 10 are arranged on the storage inner bin 8. During feeding, the rotary table 7 rotates, so that the inner bin feed inlet 9 on a certain storage inner bin 8 is aligned with the outer bin feed inlet 5. 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 inside of the storage inner bin 8 with the outside of the storage outer bin 1. The external iron ore concentrate directly enters the inside of the storage inner bin 8 along the feed channel 12 under the action of the feed elevator 3, without interfering with the storage environment inside the storage outer bin 1. During discharging, the rotary table 7 rotates, so that the inner bin discharge outlet 10 on a certain storage inner bin 8 is aligned with the outer bin discharge outlet 6. 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 inside of the storage inner bin 8 with the outside of the storage outer bin 1. The iron ore concentrate in the storage inner bin 8 directly falls on the discharge plate 18 below the storage outer bin 1 and is discharged and transported by the discharge conveyor 2, without interfering with the storage environment inside the storage outer bin 1. Such a structure enables the internal environment of the storage outer bin 1 not to communicate with the outside world during the feeding and discharging process of iron ore concentrate, thereby ensuring the stability of the internal environment of the storage outer bin 1, enabling the iron ore concentrate to be stored for a long time without oxidation and deterioration, ensuring the storage quality of iron ore concentrate, extending the storage time, and reducing the storage cost.

Claims

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

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

3. The storage device for producing iron concentrate powder 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 concentrate powder according to claim 1, wherein: A support rod (23) is provided at 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 at the bottom of the upper sealing plug (13). The sliding column (25) is slidably connected inside the sliding sleeve (24). 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 concentrate powder according to claim 1, wherein: Both the bottom of the discharge plate (18) and the discharge hopper (16) are inclined. Baffles (26) are symmetrically provided on both sides of the discharge plate (18).

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

7. The storage device for producing iron concentrate powder according to claim 6, characterized in that: A communicating upper pipe head (29) is provided at the bottom of the storage inner bin (8). The lower sealing plug (19) is slidably connected inside the upper pipe head (29). When the discharge hopper (16) slides upward, the lower pipe head (27) slidably sleeves outside the upper pipe head (29).

8. The storage device for producing iron concentrate powder according to claim 1, characterized in that: A sliding cavity (30) is provided at 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 inside the sliding cavity (30). 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 concentrate powder according to claim 1, characterized in that: The temperature reduction component includes a cooling water inlet pipe (32) and a cooling water outlet sandwich layer (33) arranged inside the rotating table (7). The cooling water outlet sandwich layer (33) is located inside the side wall of the cooling water inlet pipe (32). The cooling water inlet pipe (32) is rotationally communicated with a water inlet connector (34). The cooling water outlet sandwich layer (33) is rotationally communicated with a water outlet connector (35). A cooling sandwich layer (36) is provided on the side wall of the storage inner bin (8). An inlet branch pipe (37) and an outlet branch pipe (38) are communicated with the cooling sandwich layer (36). The inlet branch pipe (37) is communicated with the water inlet connector (34). The outlet branch pipe (38) is communicated with the water outlet connector (35).

10. A storage process for producing iron concentrate powder, characterized in that, The steps are as follows: S1. Use a dehumidifier (4) and a temperature reduction component to form a dry and 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). The discharge channel (17) on the discharge hopper (16) is closed by the discharge plate (18). Thus, the feed hopper (11) and the discharge hopper (16) respectively close the outer bin feed port (5) and the outer bin discharge port (6), ensuring the stability of the storage environment; S2. When the iron ore concentrate is fed from the feed hopper (11), the rotating 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). 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 inside of the storage inner bin (8) with the outside of the storage outer bin (1). The external iron ore concentrate directly enters the inside 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); S3. After the iron ore concentrate feeding is completed, 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 and will not oxidize and deteriorate; S4. When the iron concentrate powder discharges 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). 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 inside of the storage inner bin (8) with the outside of the storage outer bin (1). The iron concentrate powder in the storage inner bin (8) directly falls on the discharge plate (18) below the storage outer bin (1) along the discharge channel (17), and the discharge conveyor (2) is used for discharge transportation, without interfering with the storage environment inside the storage outer bin (1). S5. After the iron concentrate powder is discharged, the discharge power rod (21) drives the discharge hopper (16) to slide downward to reset, closing the outer bin discharge port (6). The lower sealing plug (19) slides downward to reset under the action of the return spring (20) to close the inner bin discharge port (10), so that the iron concentrate powder in other storage inner bins (8) still remains stored in a relatively closed environment and will not oxidize and deteriorate.

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