A green production slag conveying mechanism

Abstract

The application relates to a green production slag conveying mechanism, belonging to the technical field of slag conveying, which comprises a conveying belt and a shell, the shell is arranged along the length direction of the conveying belt, the conveying belt is arranged through the shell, air inlet pipes, air outlet pipes, a first ring pipe and a second ring pipe are arranged on the shell and are all communicated with the inside of the shell, the first ring pipe and the second ring pipe surround the shell for one round, the first ring pipe is located at the feeding end of the shell close to the conveying belt, the second ring pipe is located at the discharging end of the shell close to the conveying belt, the air inlet pipe is communicated with the middle part of the shell, the air outlet pipe is simultaneously communicated with the inside of the first ring pipe and the second ring pipe, one end of the air inlet pipe away from the shell is used for being communicated with an external cold air conveying device, one end of the air outlet pipe away from the first ring pipe and the second ring pipe is used for being communicated with an external heat exchanger, and the application has the effect of prolonging the service life of the conveying belt under the working condition of conveying high-temperature slag.

Description

Technical Field

[0001] This application relates to the technical field of slag conveying, and in particular to a slag conveying mechanism for green production. Background Technology

[0002] Slag conveying is the process of transferring slag generated from mining and smelting to a treatment or storage site using equipment such as conveyor belts. The conveying equipment and methods must be selected rationally based on the characteristics of the slag (such as particle size, temperature, and acidity / alkalinity), while also considering environmental protection and safety to prevent dust leakage, equipment wear, and other problems.

[0003] The generated slag is sent to a conveyor belt and is transported by the conveyor belt.

[0004] For high-temperature slag, the surface of the conveyor belt is covered with a silicone rubber and vermiculite insulation layer to improve the high-temperature resistance of the conveyor belt. However, in actual use, the operation of slag needs to be continuous. Relying solely on the insulation layer of the conveyor belt itself cannot resist the high temperature of the slag for a long time, which has the defect of accelerating the reduction of the service life of the conveyor belt. Utility Model Content

[0005] In order to extend the service life of the conveyor belt under the condition of transporting high-temperature slag, this application provides a green production slag conveying mechanism.

[0006] The green production slag conveying mechanism provided in this application adopts the following technical solution: A green production slag conveying mechanism includes a conveyor belt and a housing. The housing is arranged along the length of the conveyor belt, and the conveyor belt passes through the housing. The housing is provided with an air inlet pipe, an air outlet pipe, a first ring pipe, and a second ring pipe, all of which are connected to the interior of the housing. The first ring pipe and the second ring pipe surround the housing. The first ring pipe is located at the feed end of the housing near the conveyor belt, and the second ring pipe is located at the discharge end of the housing near the conveyor belt. The air inlet pipe is connected to the interior of the housing at the middle of the housing. The air outlet pipe is connected to the interior of both the first and second ring pipes. The end of the air inlet pipe away from the housing is used to connect to an external cold air conveyor, and the end of the air outlet pipe away from the first and second ring pipes is used to connect to an external heat exchanger.

[0007] By adopting the above technical solution, external cold air enters the casing through the air inlet duct and absorbs the heat emitted by the high-temperature slag on the conveyor belt during its flow within the casing. The first ring pipe at the feeding end and the second ring pipe at the discharging end are connected to the air outlet duct. The hot air, after absorbing heat, flows through the air outlet duct to the external heat exchanger, forming an air circulation cooling system. This system continuously cools the conveyor belt, sharing the heat dissipation pressure of the conveyor belt's insulation layer, effectively reducing the thermal erosion of the conveyor belt by the high-temperature slag, thereby extending the service life of the conveyor belt under high-temperature conditions. At the same time, the hot air can be recovered and reused through the heat exchanger, which is in line with the concept of green production. Both the first and second ring pipes can form annular air outlet walls. By controlling the air volume, a negative pressure air wall can be formed to achieve the effect of dust suppression.

[0008] Optionally, a louver is provided at the connection between the air inlet pipe and the outer casing. The louver includes blades and an outer frame. Multiple blades are spaced apart and are rotatably mounted on the outer frame and swing back and forth in the horizontal direction.

[0009] By adopting the above technical solution, the fan blades oscillate horizontally on the outer frame, adjusting the air intake angle and volume of the air inlet duct. When the fan blades oscillate to different angles, the direction and coverage area of ​​the cold air entering the casing change accordingly, preventing cold air from concentrating on a specific part of the conveyor belt and ensuring more even contact between the cold air and the high-temperature slag and conveyor belt, thus improving the overall heat dissipation effect. Simultaneously, the oscillating fan blades also provide initial turbulence to the incoming cold air, promoting thorough mixing of the cold and hot air and improving heat exchange efficiency.

[0010] Optionally, the air inlet pipe is equipped with an intermittent assembly, which includes a motor, an irregular turntable, a rack, and a gear. The motor is fixed to the outer wall of the air inlet pipe and drives the irregular turntable to rotate. The length direction of the rack is parallel to the length direction of the conveyor belt, and the rack slides in the horizontal direction. One end of the rack always slides and abuts against the circumferential outer wall of the irregular turntable. The rotation shaft between the fan blade and the outer frame passes through to the outside of the air inlet pipe and is fixedly connected to the center of the gear. The gear meshes with the rack. The irregular turntable, in conjunction with the motor, gear, and rack, ensures that the time the fan blade spends at the feed end of the conveyor belt is longer than the time it spends at the discharge end of the conveyor belt.

[0011] By adopting the above technical solution, the motor drives the irregular turntable to rotate. The special contour of the irregular turntable pushes the rack to slide back and forth in the horizontal direction. The rack drives the fan blades to rotate through the meshing gears. Due to the shape design of the irregular turntable, the fan blades spend more time facing the feed end of the conveyor belt than the discharge end. Since the feed end of the conveyor belt has just received high-temperature slag, the temperature is even higher. This design allows more cool air to be blown preferentially towards the feed end, specifically enhancing heat dissipation in the higher-temperature area, effectively reducing the temperature of the conveyor belt at the feed end, further improving the high-temperature resistance of the conveyor belt, and extending its service life.

[0012] Optionally, a frame plate is fixed on the outer wall of the air inlet pipe, a rack passes through the frame plate, the rack is slidably mounted on the frame plate, a protrusion is fixed on the top of the rack, and a spring is fixed between the protrusion and the frame plate. The spring is used to provide a force to the rack in the direction of the irregular turntable.

[0013] By adopting the above technical solution, the frame plate provides sliding guidance for the rack, ensuring stable horizontal sliding of the rack. The spring provides a force to the rack near the irregular turntable, ensuring that the rack always maintains close contact with the circumferential outer wall of the irregular turntable, ensuring reliable rack movement when the irregular turntable rotates. Even under prolonged operation or slight vibration, the spring force maintains contact between the rack and the irregular turntable, preventing intermittent component failure due to poor contact, ensuring the fan blades oscillate according to a predetermined pattern, and guaranteeing stable operation of the cooling system.

[0014] Optionally, a telescopic rod is fixed between the protrusion and the frame plate, the length direction of the telescopic rod is set along the sliding direction of the rack, and a spring ring is sleeved on the outside of the telescopic rod.

[0015] By adopting the above technical solution, the telescopic rod works in conjunction with the spring to limit the deformation direction of the spring, preventing the spring from bending or twisting under force, and ensuring that the spring stably provides elastic force along the sliding direction of the rack. At the same time, the telescopic rod provides support for the spring, enhancing the stability of the spring during the extension and retraction process, further improving the smoothness of the rack's movement, making the oscillation angle and frequency of the fan blades more precise, ensuring that the heat dissipation effect of the cold air cooling system remains stable at all times, and effectively extending the service life of the conveyor belt.

[0016] Optionally, the rack is provided with balls at the end near the irregular turntable, and the balls roll and abut against the outer wall of the irregular turntable.

[0017] By adopting the above technical solution, the ball bearings transform the sliding friction between the rack and the irregular rotating disk into rolling friction, significantly reducing the frictional force between them, minimizing component wear, and extending the service life of intermittent components. Simultaneously, the lower resistance of rolling friction allows the rack to slide more smoothly and more accurately follow the contour changes of the irregular rotating disk, thereby ensuring the accuracy of the fan blade oscillation angle and dwell time, enabling the cooling system to achieve optimal heat dissipation performance.

[0018] Optionally, the irregular turntable has a groove on its circumferential outer wall, and the ball bearings are located in the groove.

[0019] By adopting the above technical solution, the grooves on the circumferential outer wall of the irregular turntable provide guidance and positioning for the balls, ensuring stable rolling within the grooves and preventing them from shifting or disengaging during movement. This further enhances the stability and reliability of the transmission between the rack and the irregular turntable. The cooperation between the grooves and the balls ensures that the intermittent assembly maintains a precise transmission relationship during long-term operation, guaranteeing that the fan blades oscillate according to a predetermined pattern, continuously and efficiently dissipating heat from the conveyor belt, and effectively extending the service life of the conveyor belt under high-temperature conditions.

[0020] Optionally, a filter box is provided on the air outlet duct.

[0021] By adopting the above technical solution, the filter box on the exhaust duct can filter the discharged hot air, intercepting impurities such as slag dust and particles carried in the hot air. This prevents these impurities from entering the heat exchanger, avoiding the heat exchange components from being affected by impurity accumulation, thus ensuring the normal operation and service life of the heat exchanger. At the same time, the filtered hot air is cleaner, reducing dust emissions and environmental pollution, meeting the environmental protection requirements of green production slag conveying mechanisms.

[0022] In summary, this application includes at least one of the following beneficial technical effects: 1. High-efficiency heat dissipation and extended lifespan: The circulating air-cooling system, formed by the outer shell, inlet duct, outlet duct, and ring pipe, continuously cools the conveyor belt, effectively reducing the thermal erosion of the conveyor belt by high-temperature slag and extending the service life of traditional conveyor belts under high-temperature conditions. Simultaneously, hot air is recovered and reused through a heat exchanger, achieving energy recycling and conforming to the concept of green production. 2. Intelligent temperature control and precise heat dissipation: The intermittent component drives the louvered fan blades to dynamically adjust the air intake direction, which extends the residence time of the cold air at the feed end of the conveyor belt (high temperature area) by 2-3 times, forming an intelligent temperature control effect of "high temperature strong cooling and low temperature balance", which significantly improves heat dissipation efficiency and reduces the risk of local overheating of the conveyor belt. 3. Environmental protection and dust reduction and system protection: The negative pressure wind wall formed by the ring pipe can reduce dust emission, the filter box intercepts slag dust, and protects the heat exchanger to ensure stable operation. Attached Figure Description

[0023] Figure 1 This is a structural schematic diagram of an embodiment of this application; Figure 2 This is a partial structural diagram of the location of the intermittent component; Figure 3 This is a schematic diagram of a partial structure at the location of the ball bearing; Figure 4 This is a top view of a partial structure at the irregular turntable.

[0024] In the diagram, 1. Conveyor belt; 2. Outer casing; 21. Inlet duct; 22. Outlet duct; 23. First ring duct; 24. Second ring duct; 3. Louver; 31. Outer frame; 32. Fan blade; 4. Intermittent assembly; 41. Motor; 42. Irregular turntable; 421. Groove; 43. Rack; 431. Protrusion; 432. Ball bearing; 44. Gear; 5. Frame plate; 6. Spring; 7. Telescopic rod; 8. Filter box. Detailed Implementation

[0025] The following is in conjunction with the appendix Figures 1-4 This application will be described in further detail.

[0026] This application discloses a slag conveying mechanism for green production.

[0027] refer to Figure 1 A green production slag conveying mechanism includes a conveyor belt 1 and a shell 2 extending along its length. The shell 2 has a double-layer steel plate structure with a high-temperature resistant insulation material (such as ceramic fiber) filling the middle to reduce heat loss. The conveyor belt 1 runs through the shell 2, and its inlet and outlet ends are respectively provided with a first ring pipe 23 and a second ring pipe 24, both of which surround the shell 2 and communicate with the interior of the shell 2. An air inlet pipe 21 and an air outlet pipe 22 are provided in the middle of the shell 2. The end of the air inlet pipe 21 away from the shell 2 is connected to an external cold air source (such as a cooling fan or air conditioning system), and the air outlet pipe 22 is connected to the first ring pipe 23, the second ring pipe 24, and an external heat exchanger (not shown in the figure), forming a complete air circulation and heat dissipation system.

[0028] refer to Figure 2 and Figure 3 A louver 3 is installed at the connection between the air inlet duct 21 and the outer casing 2. The louver 3 includes an outer frame 31 and multiple blades 32. The outer frame 31 is fixed to the inner wall of the air inlet duct 21, and the multiple blades 32 are arranged at equal intervals in the horizontal direction and are rotatably connected to the outer frame 31 through bearings. An intermittent assembly 4 is provided on the outer wall of the air inlet duct 21. The intermittent assembly 4 includes a motor 41, a rack 43, a gear 44, and an irregular turntable 42. The motor 41 is fixed to the outer wall of the air inlet duct 21, and its output shaft is connected to the irregular turntable 42. The contour curve of the irregular turntable 42 is optimized so that the residence time of the blades 32 towards the feed end is greater than the residence time of the blades 32 towards the discharge end. A frame plate 5 is fixed to the outer wall of the air inlet duct 21. A rack 43 passes through the frame plate 5, and a ball bearing 432 is installed at one end of the rack 43. A groove 421 is formed on the circumferential outer wall of the irregular turntable 42, and the ball bearing 432 is embedded in the groove 421. The rack 43 meshes with a gear 44. The gear 44 is fixed on the rotation shaft of the fan blade 32, realizing the reciprocating oscillation of the fan blade 32 driven by the motor 41. That is, the rotation shaft of the fan blade 32 passes through the outside of the air inlet duct 21 and is fixed at the center of the gear 44. The number of gears 44 corresponds to the number of fan blades 32.

[0029] refer to Figure 2 and Figure 4 The connection point between motor 41 and irregular turntable 42 is defined as the center, and the distance from the center to the edge of irregular turntable 42 is defined as the radius. The radius changes as follows: the radius of irregular turntable 42 gradually increases, at which point the fan blades 32 swing towards the feed end of conveyor belt 1; the radius of irregular turntable 42 remains constant, at which point the fan blades 32 have rotated to the feed end of conveyor belt 1 and maintain this posture; the radius of irregular turntable 42 begins to decrease, at which point the fan blades 32 begin to swing towards the discharge end of conveyor belt 1. This constitutes one complete cycle, and the cycle repeats.

[0030] refer to Figure 2 A protrusion 431 is fixed to the top of the rack 43. To ensure the stable operation of the intermittent assembly 4, a spring 6 and a telescopic rod 7 are provided between the protrusion 431 and the frame plate 5. The spring 6 is looped around the telescopic rod 7 to ensure that the ball 432 is always in close contact with the groove 421.

[0031] refer to Figure 1 A filter box 8 is installed on the air outlet duct 22. The filter box 8 adopts a three-stage filtration structure: a primary filter (50μm pore size) intercepts large dust particles, a medium-efficiency filter (10μm pore size) removes fine particles, and a high-efficiency filter (1μm pore size) captures micro-dust. A quick-release inspection door is provided on the side of the filter box 8 for easy periodic cleaning or replacement of filter media.

[0032] The implementation principle of a green production slag conveying mechanism according to this application embodiment is as follows: When high-temperature slag falls onto the conveyor belt 1, external cold air enters the interior of the outer shell 2 through the air inlet pipe 21. At this time, the motor 41 drives the irregular turntable 42 to rotate, and through the meshing of the rack 43 and the gear 44, it drives the fan blades 32 of the louver 3 to swing back and forth on its outer frame 31. Due to the special contour design of the irregular turntable 42, the fan blades 32 stay at the feed end of the conveyor belt 1 for a longer time than at the discharge end, so that more cold air is preferentially blown to the feed end with a higher temperature to enhance heat dissipation. When the cold air flows inside the outer shell 2, it absorbs the heat of the slag and the conveyor belt 1, and after becoming hot air, it is collected through the first ring pipe 23 and the second ring pipe 24 located at the feed end and the discharge end to the air outlet pipe 22. After being filtered by the filter box 8 to remove dust and other impurities, it flows to the external heat exchanger to realize heat recovery and utilization. At the same time, by controlling the air volume of the ring pipe, a negative pressure wind wall is formed to play a role in dust reduction.

[0033] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A green production slag conveying mechanism, comprising a conveyor belt (1), characterized in that: It also includes a shell (2), which is arranged along the length of the conveyor belt (1). The conveyor belt (1) passes through the shell (2). The shell (2) is provided with an air inlet pipe (21), an air outlet pipe (22), a first ring pipe (23), and a second ring pipe (24), all of which are connected to the interior of the shell (2). The first ring pipe (23) and the second ring pipe (24) surround the shell (2) once. The first ring pipe (23) is located at the feed end of the shell (2) near the conveyor belt (1). The second ring pipe (24) is located at the discharge end of the outer shell (2) near the conveyor belt (1). The air inlet pipe (21) is connected to the interior of the outer shell (2) in the middle of the outer shell (2). The air outlet pipe (22) is connected to the interior of the first ring pipe (23) and the second ring pipe (24). The end of the air inlet pipe (21) away from the outer shell (2) is used to connect with the external cold air delivery point. The end of the air outlet pipe (22) away from the first ring pipe (23) and the second ring pipe (24) is used to connect with the external heat exchanger.

2. The slag conveying mechanism for green production according to claim 1, characterized in that: A louver (3) is provided at the connection between the air inlet pipe (21) and the outer shell (2). The louver (3) includes a fan blade (32) and an outer frame (31). Multiple fan blades (32) are spaced apart. The fan blades (32) are rotatably mounted on the outer frame (31) and swing back and forth in the horizontal direction.

3. The slag conveying mechanism for green production according to claim 2, characterized in that: An intermittent assembly (4) is provided on the air inlet pipe (21). The intermittent assembly (4) includes a motor (41), an irregular turntable (42), a rack (43), and a gear (44). The motor (41) is fixed on the outer wall of the air inlet pipe (21) to drive the irregular turntable (42) to rotate. The length direction of the rack (43) is parallel to the length direction of the conveyor belt (1). The rack (43) slides in the horizontal direction. One end of the rack (43) always slides against the circumferential outer wall of the irregular turntable (42). The rotation shaft between the fan blade (32) and the outer frame (31) passes through the outside of the air inlet pipe (21) and is fixedly connected to the center of the gear (44). The gear (44) meshes with the rack (43). The irregular turntable (42) cooperates with the motor (41), the gear (44), and the rack (43) to ensure that the time the fan blade (32) stays at the feed end of the conveyor belt (1) is longer than the time it stays at the discharge end of the conveyor belt (1).

4. The slag conveying mechanism for green production according to claim 3, characterized in that: A frame plate (5) is fixed on the outer wall of the air inlet pipe (21). A rack (43) passes through the frame plate (5) and slides on the frame plate (5). A protrusion (431) is fixed on the top of the rack (43). A spring (6) is fixed between the protrusion (431) and the frame plate (5). The spring (6) is used to provide a force to the rack (43) in the direction close to the irregular turntable (42).

5. A green production slag conveying mechanism according to claim 4, characterized in that: A telescopic rod (7) is fixed between the protrusion (431) and the frame plate (5). The telescopic rod (7) is set along the sliding direction of the rack (43) in the length direction, and the spring (6) is looped around the outside of the telescopic rod (7).

6. A green production slag conveying mechanism according to claim 3, characterized in that: The rack (43) is provided with a ball (432) at the end near the irregular turntable (42), and the ball (432) rolls against the outer wall of the irregular turntable (42).

7. A green production slag conveying mechanism according to claim 6, characterized in that: The irregular turntable (42) has a groove (421) on its circumferential outer wall, and the ball (432) is located in the groove (421).

8. The slag conveying mechanism for green production according to claim 1, characterized in that: A filter box (8) is installed on the air outlet pipe (22).

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