Lifting device for fine iron powder production

Abstract

The application relates to a lifting device for producing iron concentrate powder, which comprises a lifting bin, a discharging port located at the upper portion and a feeding port located at the lower portion oppositely arranged on the lifting bin, a cavity in the lifting bin, a lifting mechanism arranged in the cavity, the lifting mechanism being used for lifting iron concentrate powder balls upward, a hot gas bin arranged on one side of the lifting bin, the hot gas bin being used for supplying hot gas to the lifting bin, a plurality of infrared heating pipes one arranged in the hot gas bin in sequence, and two groups of infrared heating pipes two oppositely arranged on the other side of the lifting bin. The lifting device can preheat the iron concentrate powder balls in the process of lifting the iron concentrate powder balls through the lifting bin, the lifting mechanism, the hot gas bin, the infrared heating pipe one and the infrared heating pipe two. Compared with the iron concentrate powder balls without preheating, the required calcination temperature can be reached faster, the heating time and the working load of the preheating section of the chain grate machine are reduced, and the efficiency of the whole production process is improved.

Description

Technical Field

[0001] This application relates to the field of iron concentrate production technology, and in particular to a lifting device for iron concentrate production. Background Technology

[0002] In the iron concentrate production process, the raw material briquettes formed by mixing and pressing iron concentrate with binder need to be conveyed to a chain grate machine via an elevator for subsequent preheating and calcination. During processing in the chain grate machine, the raw material briquettes undergo several stages, including forced-air drying, forced-air drying, and preheating. The main purpose of this series of operations is to remove moisture from the raw material briquettes and effectively improve their strength, laying a good foundation for subsequent calcination and other processes, and ensuring that the quality of the final product meets production requirements.

[0003] However, some elevators have relatively simple functions, mainly focusing on the vertical or inclined conveying of raw material balls, lifting them from a lower position to a higher position and transferring them to the inlet of the chain grate. In actual production, the preheating section of the chain grate plays an important role in initially heating the raw material balls to bring them to a suitable temperature, creating favorable conditions for subsequent calcination. However, since the elevator does not have a preheating function, the initial temperature of all raw material balls is room temperature, which undoubtedly greatly increases the workload of the preheating section of the chain grate.

[0004] The preheating section of the chain grate machine needs to heat a large number of raw material balls at room temperature to a predetermined temperature within a limited time and space. This not only requires the preheating section to have a strong heating capacity, but also leads to a significant increase in energy consumption. At the same time, due to the excessive preheating load, the preheating time may not be fully guaranteed, which in turn affects the preheating effect of the raw material balls. As a result, the raw material balls may not reach the ideal temperature and strength state when entering the calcination stage, which may ultimately have an adverse impact on product quality and production efficiency.

[0005] The situation can be significantly improved if preheating equipment is properly installed inside the elevator. During the conveying of raw material pellets through the elevator, the preheating equipment can preheat them, ensuring they reach a certain temperature before entering the chain grate. This effectively reduces the load on the preheating section of the chain grate, allowing for more efficient preheating of the raw material pellets and enabling them to reach the appropriate calcination temperature more quickly. This contributes to improved overall production efficiency and a shorter production cycle.

[0006] To address the aforementioned issues, a lifting device for iron concentrate production is now designed. Utility Model Content

[0007] This application provides an elevator for iron concentrate production to solve the problem that elevators in related technologies have relatively simple functions, lack preheating capabilities, and the initial temperature of raw material balls is always room temperature, which increases the workload of the preheating section of the chain grate machine.

[0008] Firstly, a hoisting device for iron concentrate production is provided, comprising: The lifting chamber has an upper discharge port and a lower inlet port arranged opposite to each other. The lifting chamber has a cavity inside, and a lifting mechanism is provided inside the cavity. The lifting mechanism is used to lift the iron concentrate balls upward. A hot air chamber is provided on one side of the lifting chamber, which is used to supply hot air to the lifting chamber. Multiple infrared heating tubes are arranged in sequence in the hot air chamber. Two sets of infrared heating tubes are arranged opposite each other on the other side of the lifting chamber.

[0009] In some embodiments, the hot air chamber includes an air supply chamber disposed on the lifting chamber, and a rectangular shell communicating with the air supply chamber, the rectangular shell being distributed along the length of the lifting chamber; The rectangular shell is provided with multiple pipes that communicate with the lifting chamber; A fan is installed on the air supply chamber, and the air outlet of the fan is connected to the air supply chamber.

[0010] In some embodiments, a plurality of the infrared heating tubes are disposed within a rectangular housing and distributed along the length of the rectangular housing; The infrared heating tube one and infrared heating tube two are symmetrically distributed on the left and right sides.

[0011] In some embodiments, the lifting mechanism includes two rotating shafts arranged opposite each other in the lifting chamber, two sprockets arranged opposite each other on the rotating shafts, a chain drivingly connecting the two symmetrically arranged sprockets, and a plurality of lifting buckets hinged between the outer sides of the two chains, the lifting buckets being distributed along the length of the chain; A drive unit is provided above the lifting chamber, and the drive unit is connected to the rotating shaft located above and is used to drive the rotating shaft to rotate.

[0012] In some embodiments, the drive unit includes a support platform disposed on the outer side of the top of the lifting chamber, a drive motor and a reducer disposed on the support platform, the output shaft of the drive motor being connected to the input shaft of the reducer, and a sprocket two being disposed on one end of the output shaft of the reducer and one end of the rotating shaft located above, and a chain two being connected between the two sprocket two.

[0013] In some embodiments, the two sets of infrared heating tubes are located on the front and rear sides of the lifting bucket, and the number of infrared heating tubes in one set is not less than six, and they are distributed along the length of the lifting chamber. One end of each of the plurality of infrared heating tubes passes through the lifting chamber and extends into the cavity.

[0014] In some embodiments, an exhaust valve is provided on the top of the lifting chamber.

[0015] This application provides an iron concentrate production lifting device. Through the lifting chamber, lifting mechanism, hot air chamber, infrared heating tube one, and infrared heating tube two, the iron concentrate balls can be preheated during the lifting process. This ensures that the iron concentrate balls have a certain temperature before entering subsequent equipment such as the chain grate machine. Compared with unpreheated iron concentrate balls, the preheated iron concentrate balls can reach the required calcination temperature more quickly in the chain grate machine, reducing the heating time and workload of the preheating section of the chain grate machine, thereby improving the efficiency of the entire production process and shortening the production cycle.

[0016] Sufficient preheating allows for more even removal of moisture from the iron concentrate pellets, preventing quality issues such as cracking and deformation during calcination due to excessively high local moisture content. The combined heating method using infrared heating tube one and infrared heating tube two ensures more uniform heating of the iron concentrate pellets, guaranteeing their quality stability during the preheating stage and ultimately improving the quality of the final product. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A three-dimensional structural illustration provided for an embodiment of this application. Figure 1 ; Figure 2 A three-dimensional structural illustration provided for an embodiment of this application. Figure 2 ; Figure 3 A three-dimensional structural illustration provided for an embodiment of this application. Figure 3 ; Figure 4 A schematic cross-sectional view of the three-dimensional structure provided in the embodiments of this application; Figure 5 Front sectional view provided for embodiments of this application Figure 1 ; Figure 6 Front sectional view provided for embodiments of this application Figure 2 .

[0019] In the diagram: 1. Lifting chamber; 2. Chamber; 3. Lifting mechanism; 4. Exhaust valve; 5. Hot air chamber; 6. Infrared heating tube one; 7. Infrared heating tube two; 11. Discharge port; 12. Inlet port; 51. Air supply chamber; 52. Rectangular shell; 53. Pipe; 54. Fan; 31. Shaft; 32. Sprocket; 33. Chain; 34. Lifting bucket; 35. Drive component; 351. Support platform; 352. Drive motor; 353. Reducer; 354. Sprocket two; 355. Chain two. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0021] This application provides an elevator for iron concentrate production, which solves the problem that elevators in related technologies have relatively simple functions, lack preheating capabilities, and the initial temperature of raw material balls is always room temperature, which increases the workload of the preheating section of the chain grate machine.

[0022] Please see Figures 1-3 A lifting device for iron concentrate production includes: a lifting chamber 1, on which an upper discharge port 11 and a lower inlet port 12 are arranged opposite each other; the lifting chamber 1 has a chamber 2 inside, and a lifting mechanism 3 is arranged inside the chamber 2 for lifting iron concentrate balls upward; a hot air chamber 5 is arranged on one side of the lifting chamber 1 for supplying hot air to the lifting chamber 1; a plurality of infrared heating tubes 6 are arranged sequentially inside the hot air chamber 5; and two sets of infrared heating tubes 7 are arranged opposite each other on the other side of the lifting chamber 1.

[0023] At the feed inlet 12 located at the bottom of the lifting chamber 1, iron concentrate balls are fed into the chamber 2 inside the lifting chamber 1. At this time, the lifting mechanism 3 located inside the chamber 2 starts to work, carrying the iron concentrate balls upward. When they reach the discharge outlet 11 at the top of the lifting chamber 1, the iron concentrate balls are discharged from the discharge outlet 11, completing the upward lifting process of the iron concentrate balls.

[0024] At the same time, multiple infrared heating tubes 6 inside the hot air chamber 5 start working and can emit infrared radiation heat. When air flows through the infrared heating tubes 6, it is heated and forms hot air. After the hot air enters the lifting chamber 1, it heats the iron concentrate balls in the chamber 2.

[0025] Meanwhile, the infrared heating tube 2 7 on the other side of the lifting chamber 1 also plays a heating role. The infrared heating tube 2 7 emits infrared rays to the iron concentrate balls in the lifting chamber 1 to assist in heating the iron concentrate balls, ensuring that the iron concentrate balls can fully absorb heat during the lifting process and achieve a preheating effect.

[0026] By using the lifting chamber 1, lifting mechanism 3, hot air chamber 5, infrared heating tube 1 6, and infrared heating tube 2 7, the iron concentrate pellets can be preheated during the lifting process. This ensures that the iron concentrate pellets have a certain temperature before entering subsequent equipment such as the chain grate machine. Compared to unpreheated iron concentrate pellets, the preheated iron concentrate pellets can reach the required calcination temperature more quickly in the chain grate machine, reducing the heating time and workload of the preheating section of the chain grate machine. This improves the efficiency of the entire production process and shortens the production cycle.

[0027] Sufficient preheating allows for more even removal of moisture from the iron concentrate pellets, preventing quality issues such as cracking and deformation during calcination due to excessively high local moisture content. The combined heating method of infrared heating tube 6 and infrared heating tube 7 ensures more uniform heating of the iron concentrate pellets, guaranteeing their quality stability during the preheating stage and thus improving the quality of the final product.

[0028] like Figure 4 and Figure 6 As shown, in one embodiment, the hot air chamber 5 includes an air supply chamber 51 disposed on the lifting chamber 1, and a rectangular shell 52 communicating with the air supply chamber 51. The rectangular shell 52 is distributed along the length of the lifting chamber 1. A plurality of pipes 53 communicating with the lifting chamber 1 are disposed on the rectangular shell 52. A fan 54 is disposed on the air supply chamber 51, and the air outlet of the fan 54 is communicating with the air supply chamber 51.

[0029] The fan 54 installed on the air supply chamber 51 starts to operate. The fan 54 draws in outside air from the surrounding environment by its own suction capacity. Since the air outlet of the fan 54 is directly connected to the air supply chamber 51, the air drawn in will enter the interior of the air supply chamber 51 through the pipe.

[0030] The air supply chamber 51 is connected to the rectangular shell 52. The air entering the air supply chamber 51 will flow further into the rectangular shell 52. Since the rectangular shell 52 is distributed along the length of the lifting chamber 1, the air can be evenly distributed in the rectangular shell 52.

[0031] Inside the rectangular housing 52, when air flows through the infrared heating tube 6, the infrared heating tube 6 emits infrared radiation heat to heat the air, raising its temperature to form hot air. Subsequently, the pipe 53 evenly transports the heated hot air into the lifting chamber 1 to provide the heat required for preheating the iron concentrate balls in the lifting chamber 1.

[0032] The rectangular shell 52 is distributed along the length of the lifting chamber 1, so that the air can fully contact the infrared heating tube 6 inside the rectangular shell 52, ensuring that the air is heated evenly inside the rectangular shell 52.

[0033] Meanwhile, multiple pipes 53 are evenly distributed on the rectangular shell 52, which can evenly transport hot air to various positions in the lifting chamber 1, making the iron concentrate balls in the lifting chamber 1 more evenly heated and improving the preheating effect.

[0034] The rotational speed of fan 54 can be adjusted according to actual production needs. When it is necessary to accelerate the preheating speed or increase the preheating temperature, the rotational speed of fan 54 can be appropriately increased to increase the intake and delivery volume of air, thereby allowing more air to be heated and delivered to the lifting chamber 1. Conversely, when the preheating demand is low, the rotational speed of fan 54 can be reduced to save energy.

[0035] The temperature of the hot gas can be adjusted by controlling the power of the infrared heating tube 6. Based on the characteristics of the iron concentrate pellets and the requirements of the production process, controlling the hot gas temperature within a suitable range ensures good preheating of the iron concentrate pellets while avoiding changes in their properties or energy waste due to excessively high temperatures.

[0036] like Figure 3 and Figure 4 As shown, in this embodiment, a plurality of infrared heating tubes 6 are disposed inside a rectangular housing 52 and distributed along the length of the rectangular housing 52; the infrared heating tubes 6 and 7 are symmetrically distributed from left to right.

[0037] Two sets of infrared heating tubes 7 are arranged opposite each other on the other side of the lifting chamber 1, and the infrared heating tubes 6 and 7 are symmetrically distributed from left to right, so that the heat field distribution in the lifting chamber 1 is more uniform.

[0038] Specifically, infrared heating tube 7 emits infrared rays directly into the lifting chamber 1 to reheat the iron concentrate pellets that have entered the lifting chamber 1 and the hot air delivered from the hot air chamber 5, thereby further ensuring that the lifting chamber 1 maintains a high temperature environment to meet the preheating requirements of the iron concentrate pellets.

[0039] Iron concentrate pellets enter the chamber 2 inside the lifting chamber 1 through the feed inlet 12 at the bottom of the lifting chamber 1, and are lifted upward by the lifting mechanism 3. During the lifting process, the iron concentrate pellets are heated by convection from the hot air supplied from the hot air chamber 5 and by radiation from the infrared heating tube 7. Through the synergistic effect of the infrared heating tube 6 and the infrared heating tube 7, the iron concentrate pellets can absorb heat evenly and fully during the lifting process, achieving effective preheating.

[0040] like Figure 2 , Figure 3 and Figure 5 As shown, in one embodiment, the lifting mechanism 3 includes two rotating shafts 31 arranged opposite each other inside the lifting chamber 1. Two sprockets 32 are arranged opposite each other on the rotating shafts 31. A chain 33 is connected between the two symmetrically arranged sprockets 32. A plurality of lifting buckets 34 are hinged between the outer sides of the two chains 33. The lifting buckets 34 are distributed along the length of the chains 33. A driving member 35 is arranged above the lifting chamber 1. The driving member 35 is connected to the rotating shafts 31 located above and is used to drive the rotating shafts 31 to rotate.

[0041] When the drive unit 35 is activated, it drives the upper rotating shaft 31 to rotate. Since there are two rotating shafts 31 arranged opposite each other in the lifting chamber 1, and each rotating shaft 31 has two sprockets 32 arranged opposite each other, when the upper rotating shaft 31 rotates, it will drive the two sprockets 32 on it to rotate synchronously. The rotation of the sprockets 32 will transmit power to the sprockets 32 on the lower rotating shaft 31 through the chain 33, thereby driving the lower rotating shaft 31 to rotate, forming a closed power transmission system, so that the upper and lower rotating shafts 31 and sprockets 32 can rotate in a coordinated manner.

[0042] A chain 33 is connected between two symmetrical sprockets 32. As the sprockets 32 rotate, the chain 33 begins to circulate. Multiple lifting buckets 34 are hinged between the outer sides of the two chains 33 and distributed along the length of the chain 33. When the chain 33 moves, it will drive the lifting buckets 34 to move together. Driven by the chain 33, the lifting buckets 34 move cyclically along a specific trajectory to form a continuous material lifting path.

[0043] A feed inlet 12 is provided at the lower part of the lifting chamber 1. Materials such as iron concentrate balls enter the lifting chamber 1 through the feed inlet 12. When the lifting bucket 34 containing the material moves to the vicinity of the feed inlet 12, the material falls into the lifting bucket 34. As the chain 33 continues to move, the lifting bucket 34 lifts the material upward. During the lifting process, the material remains inside the lifting bucket 34. When the lifting bucket 34 moves to the vicinity of the discharge outlet 11 at the upper part of the lifting chamber 1, due to the setting of the discharge outlet 11 and the change in the movement posture of the lifting bucket 34, the material is poured out from the lifting bucket 34 and enters the subsequent production stage through the discharge outlet 11, completing the material lifting process.

[0044] The transmission system consisting of two rotating shafts 31 and four sprockets 32 has a symmetrical and reasonable structure, which can ensure that the chain 33 is subjected to uniform force during operation. This uniform force distribution reduces the wear and deformation of the chain 33, lowers the probability of chain 33 derailment, breakage and other failures, and improves the stability and reliability of the lifting mechanism 3.

[0045] like Figure 2 , Figure 3 and Figure 5 As shown, in one embodiment, the drive unit 35 includes a support platform 351 disposed on the outer side of the top of the lifting chamber 1, a drive motor 352 and a reducer 353 disposed on the support platform 351, the output shaft of the drive motor 352 is connected to the input shaft of the reducer 353, and a sprocket 354 is disposed at one end of the output shaft of the reducer 353 and the rotating shaft 31 located above, and a chain 355 is connected between the two sprockets 354.

[0046] When the equipment is started, the drive motor 352 starts to run, and its output shaft rotates according to the set speed and direction, thereby outputting power.

[0047] The power output by the drive motor 352 is transmitted to the input shaft of the reducer 353 connected to its output shaft. According to the requirements of the operating speed of the lifting mechanism 3 in actual production, the reducer 353 can adjust the power to a suitable speed and torque to ensure that the lifting mechanism 3 can operate at a stable and appropriate speed.

[0048] The power adjusted by the reducer 353 is output from its output shaft, which drives the second sprocket 354 on it to rotate, which in turn drives the second chain 355 to move. The second chain 355 then transmits the power to the second sprocket 354 at one end of the upper rotating shaft 31, thereby driving the upper rotating shaft 31 to rotate.

[0049] The rotation of the upper shaft 31 will drive the sprocket 32 ​​connected to it to rotate. Through the transmission system of chain 33 and sprocket 32, the operation of the entire lifting mechanism 3 is finally realized, so that the lifting bucket 34 can circulate and lift materials.

[0050] The drive motor 352 can provide stable power output, while the reducer 353 can adjust the speed and torque according to the actual working requirements of the lifting mechanism 3. Specifically, by adjusting the reduction ratio of the reducer 353, the lifting mechanism 3 can always maintain the optimal working speed and power state, avoiding equipment failure or low production efficiency caused by excessive or insufficient power, and achieving precise matching between power and working requirements.

[0051] like Figure 6 As shown, in this embodiment, the two sets of infrared heating tubes 7 are located on the front and rear sides of the lifting bucket 34. The number of infrared heating tubes 7 in one set is not less than six, and they are distributed along the length of the lifting chamber 1. One end of the plurality of infrared heating tubes 6 penetrates the lifting chamber 1 and extends into the chamber 2.

[0052] When the device is started, the infrared heating tube 7 is powered on and begins to work. Its internal heating element generates heat and radiates it outward in the form of infrared rays.

[0053] When the lifting bucket 34, which contains materials such as iron concentrate pellets, passes through the area where the infrared heating tube 2 7 is located, the material will receive infrared energy radiated from the infrared heating tube 2 7 on both the front and rear sides. Infrared rays have penetrating power and can directly act on the molecules inside the material, causing the molecules to vibrate and rotate, thereby converting electrical energy into heat energy and heating the material.

[0054] Multiple infrared heating tubes 6 have one end penetrating the lifting chamber 1 and extending into the chamber 2. When the equipment is running, the infrared heating tubes 6 are also energized and generate heat, producing infrared radiation that radiates into the interior of the chamber 2, raising the temperature of the material to achieve the purpose of preheating or drying.

[0055] Two sets of infrared heating tubes 7 and multiple infrared heating tubes 6, located on the front and rear sides of the lifting bucket 34 respectively, can heat the material in the lifting bucket 34 from multiple directions. Compared with infrared heating tubes that heat only one side, they can cover the material more comprehensively, reduce the dead angles of material heating, and enable the material to receive more uniform infrared radiation during the lifting process, thereby ensuring the temperature consistency of each part of the material and improving the heating effect.

[0056] The arrangement of multiple groups and multiple infrared heating tubes provides redundancy. Even if one heating tube fails, the others can still operate normally, ensuring that the heating effect on the material is not significantly affected, thus improving the reliability and stability of the equipment. Multiple infrared heating tubes work together, reducing the load on a single heating tube and decreasing the probability of failure due to prolonged high-load operation of a single heating tube.

[0057] like Figure 1 and Figure 5 As shown, in one embodiment, an exhaust valve 4 is provided on the top of the lifting chamber 1.

[0058] During the heating process, moisture or other volatile substances in the material will be heated and vaporized, turning into a gaseous form. At the same time, if there is air in the lifting chamber 1, the air will also expand under the heating effect. These gaseous substances and the expanded air will accumulate in the lifting chamber 1, causing the pressure inside the chamber to gradually increase.

[0059] The exhaust valve 4 is located at the top of the lifting chamber 1. When the pressure inside the lifting chamber 1 reaches the preset opening pressure value of the exhaust valve 4, the control mechanism will overcome the spring force and move the valve core upward, thereby opening the exhaust channel and allowing the gaseous substances and expanding air accumulated inside the lifting chamber 1 to be discharged into the external environment through the exhaust valve 4.

[0060] When the pressure inside the chamber drops to a certain level, below the closing pressure value of the exhaust valve 4, the spring will push the valve core downward to close the exhaust passage again, preventing outside air from entering the lifting chamber 1 unnecessarily.

[0061] In this implementation scheme, when there is gas in the exhaust valve 4, the gas will rise up along the pipeline to the highest point where the exhaust valve is installed, and accumulate in the upper part of the valve cavity. The increase in gas in the valve causes the pressure to rise. When the gas pressure is greater than the system pressure, the water level in the cavity drops, and the float falls with the water level. The falling float drives the lever mechanism to open the exhaust port, and the gas is discharged through the exhaust port.

[0062] After the gas is exhausted, the water level rises, and the float rises accordingly, closing the vent. When negative pressure is generated in the system, the water level in the valve chamber drops, the vent opens, and the external atmospheric pressure is greater than the system pressure. Air enters the system through the vent, preventing the pipe from collapsing or being damaged due to negative pressure. This is existing technology and will not be described in detail here.

[0063] In this embodiment, the support platform 351 is a heat insulation plate, and the rotating shaft 31 is connected to the sprocket 354 via a coupling.

[0064] The support platform 351 is made of a heat insulation board, which consists of one or more layers of aluminum silicate fiber, rock wool, or glass wool. These materials have low thermal conductivity. The outer layer is wrapped with a thin metal plate or a high-temperature resistant plastic shell to enhance the strength and durability of the heat insulation board, while also providing protection to prevent damage to the internal heat insulation material.

[0065] During equipment operation, the material in the lifting chamber (1) is heated by infrared heating tubes, generating a large amount of heat. As an important supporting component of the equipment, if the support platform 351 is made of ordinary materials, the heat will be transferred to other parts of the equipment through the support platform, which may cause nearby electronic components, transmission components, etc. to be damaged due to overheating. The heat insulation plate can effectively prevent the transfer of heat, confining the heat to the lifting chamber and related heating areas, and ensuring the normal operating temperature of other parts of the equipment.

[0066] A coupling is a mechanical component used to connect two shafts, enabling them to rotate together and transmit torque. Common types of couplings include rigid couplings and flexible couplings. In this embodiment, a flexible coupling is used, which typically consists of two half-couplings and an elastic element (such as a rubber sleeve or spring). The two half-couplings are connected to the rotating shaft 31 and the sprocket 354, respectively, and the elastic element is located between the two half-couplings, serving as a buffer and shock absorber.

[0067] In the description of this application, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0068] It should be noted that in this application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0069] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A hoisting device for iron concentrate production, characterized in that, include: The lifting chamber (1) has an upper discharge port (11) and a lower inlet port (12) arranged opposite to each other. The lifting chamber (1) has a chamber (2) inside, and a lifting mechanism (3) is arranged inside the chamber (2). The lifting mechanism (3) is used to lift the iron concentrate balls upward. A hot air chamber (5) is provided on one side of the lifting chamber (1). The hot air chamber (5) is used to supply hot air to the lifting chamber (1). Multiple infrared heating tubes (6) are arranged in sequence inside the hot air chamber (5). Two sets of infrared heating tubes (7) are arranged opposite each other on the other side of the lifting chamber (1).

2. The hoisting equipment for iron concentrate production as described in claim 1, characterized in that: The hot air chamber (5) includes an air supply chamber (51) disposed on the lifting chamber (1) and a rectangular shell (52) communicating with the air supply chamber (51). The rectangular shell (52) is distributed along the length of the lifting chamber (1). The rectangular shell (52) is provided with a plurality of pipes (53) that communicate with the lifting chamber (1). A fan (54) is installed on the air supply chamber (51), and the air outlet of the fan (54) is connected to the air supply chamber (51).

3. The lifting equipment for iron concentrate production as described in claim 2, characterized in that: Multiple infrared heating tubes (6) are disposed inside a rectangular housing (52) and distributed along the length of the rectangular housing (52); The infrared heating tube one (6) and the infrared heating tube two (7) are symmetrically distributed from left to right.

4. The hoisting equipment for iron concentrate production as described in claim 1, characterized in that: The lifting mechanism (3) includes two rotating shafts (31) arranged opposite each other in the lifting chamber (1). Two sprockets (32) are arranged opposite each other on the rotating shafts (31). A chain (33) is connected between the two symmetrical sprockets (32). Multiple lifting buckets (34) are hinged between the outer sides of the two chains (33). The lifting buckets (34) are distributed along the length of the chains (33). A drive unit (35) is provided above the lifting chamber (1). The drive unit (35) is connected to the rotating shaft (31) located above and is used to drive the rotating shaft (31) to rotate.

5. The lifting equipment for iron concentrate production as described in claim 4, characterized in that: The drive unit (35) includes a support platform (351) disposed on the outer side of the top of the lifting chamber (1), a drive motor (352) and a reducer (353) disposed on the support platform (351), the output shaft of the drive motor (352) is connected to the input shaft of the reducer (353), and a sprocket (354) is provided on one end of the output shaft of the reducer (353) and the rotating shaft (31) located above, and a chain (355) is connected between the two sprockets (354).

6. The hoisting equipment for iron concentrate production as described in claim 4, characterized in that: The two sets of infrared heating tubes (7) are located on the front and rear sides of the lifting bucket (34), and the number of infrared heating tubes (7) in one set is not less than six, and they are distributed along the length of the lifting chamber (1). One end of each of the plurality of infrared heating tubes (6) passes through the lifting chamber (1) and extends into the cavity (2).

7. The hoisting equipment for iron concentrate production as described in claim 1, characterized in that: An exhaust valve (4) is provided on the top of the lifting chamber (1).

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