Redirection chute

Abstract

The utility model proposes a redirecting chute, which relates to the field of pellet guiding equipment, including a chute and a discharging channel. The chute can be rotatably arranged inside a drying furnace and is connected to the chute with an angle adjustment component. The angle adjustment component in the device can automatically complete the angle fine-tuning of the chute according to different types of pellets, thereby making the height between the end of the chute and the discharging channel variable and non-unique, so that the breakage rate of different types of pellets can be minimized during the transfer process to the discharging channel, ensuring that the quality of the pellets stored in subsequent ton bags is qualified, so as to facilitate subsequent processing and use.

Description

Technical Field

[0001] The utility model relates to the field of pelletizing material guiding equipment, in particular to a redirecting chute. Background Art

[0002] The production process of pelletizing ore has very strict requirements on the physical and chemical performance indicators of iron ore concentrate, among which the moisture content of iron ore concentrate has a great influence on the pelletizing performance. In order to ensure the stability of the moisture content of iron ore concentrate, an iron ore drying process is required on the pelletizing production line.

[0003] At present, the drying process of the pellets is generally carried out in a drying furnace body. A plurality of chain plate conveyor belts are arranged along the height direction of the drying furnace. The pellets are sequentially moved from the top chain plate conveyor belt to the bottom chain plate conveyor belt to be discharged in a gradient manner. In this process, a chute is generally required to guide the pellets. After being guided by the chute, the pellets are conveyed to a discharge channel fixedly inclined in the drying furnace body, and then transported to ton bags along the discharge channel for storage. However, the inclination angle of the existing chute cannot be adjusted. Therefore, the height difference of different types of pellets is always the same during the transfer from the chute to the discharge channel. This will cause some types of pellets to be damaged, and the integrity of the discharge and storage of different types of pellets needs to be improved. Utility Model Content

[0004] The purpose of the utility model is to solve the problems raised in the above background technology, and then propose a redirection chute.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] The redirecting chute comprises a chute and a discharging channel. The chute is rotatably arranged inside the drying furnace and is connected with an angle adjustment component.

[0007] Furthermore, the angle adjustment assembly includes a first rotating shaft, a sub-gear, a second rotating shaft, a main gear and a servo motor. Two symmetrically distributed first rotating shafts are rotatably connected in the drying furnace, one end of the first rotating shaft is connected to a chute, one end of one of the first rotating shafts passes through the drying furnace and is provided with a sub-gear. A second rotating shaft is rotatably connected to the outer wall of the drying furnace and a main gear meshing with the sub-gear is provided on the second rotating shaft. One end of the second rotating shaft is connected to a servo motor fixed to the outer wall of the drying furnace.

[0008] The angle adjustment component in this device can automatically fine-tune the angle of the chute according to different types of pellets, so that the height between the end of the chute and the discharge channel can be variable and not unique. In this way, the breakage rate of different types of pellets can be minimized during the transfer to the discharge channel, ensuring that the quality of the pellets stored in the subsequent ton bags is qualified, so as to facilitate subsequent processing and use.

[0009] Furthermore, symmetrically distributed connecting pieces are respectively provided on the side walls at both ends of the chute, and the connecting pieces are connected to double support components to extend the service life of the first rotating shaft without hindering the angle adjustment of the chute, and the double support components are connected to the inner wall of the drying furnace.

[0010] Furthermore, the double support assembly includes a fall chain, the connecting piece is a lifting lug, one end of the fall chain is connected to the lifting lug, and the other end of the fall chain is connected to the inner wall of the drying furnace.

[0011] The above scheme requires adjusting the inclination angle of the chute before changing to dry different types of pellets. Before adjusting the angle, the fall chain is manually operated to relax the chain to leave a certain amount of activity space so as not to affect the subsequent deflection of the chute. When the chute angle is adjusted, the fall chain is manually tightened again to achieve auxiliary load-bearing during the pellet transportation process to extend the service life of the first rotating shaft.

[0012] Furthermore, the double support assembly includes a first electric cylinder and a second electric cylinder, the connecting piece is a welding block, the first electric cylinder and the second electric cylinder are rotatably connected to the inner wall of the drying furnace, and the retraction rods of the first electric cylinder and the second electric cylinder are rotatably connected to the welding blocks at both ends of the chute.

[0013] In the above scheme, when the inclination angle of the chute needs to be adjusted, the servo motor cooperates with the gear transmission to drive the first rotating shaft to move, and the two electric cylinders also work synchronously. However, the retraction rod of one of the electric cylinders contracts, and the retraction rod of the other electric cylinder extends, and the telescopic movement speed of the two electric cylinders is always consistent. In this way, the synchronous movement of the two electric cylinders and the first rotating shaft will not affect the deflection of the chute. This scheme does not require manual intervention, thereby effectively reducing labor intensity.

[0014] Furthermore, a layer of polytetrafluoroethylene plate is provided on the surface of the chute.

[0015] In the above scheme, the pellets falling onto the chute will first come into contact with the PTFE plate, which has good wear resistance, high temperature resistance and corrosion resistance, thereby effectively extending the service life of the chute and reducing the subsequent replacement frequency.

[0016] Furthermore, an installation shell located outside the main gear and the auxiliary gear is provided on the outer wall of the drying furnace, and a maintenance door is rotatably connected to the installation shell.

[0017] The above solution can facilitate the inspection of internal parts by opening and closing the maintenance door, and the wrap-around design makes the appearance more beautiful and safe.

[0018] Furthermore, a control box is arranged on one side of the maintenance door, an operation screen is arranged on the control box and a controller is arranged inside the control box.

[0019] In the above scheme, the corresponding button is selected and pressed on the operation screen according to the type of dried pellets. The operation screen then feeds back a signal to the controller. The controller then controls the servo motor in conjunction with the gear transmission to accurately adjust the inclination of the chute to the state corresponding to the type of pellets. At this time, the distance between the chute and the discharge channel is limited, so that the probability of damage to the pellets during transfer from the chute to the discharge channel can be minimized.

[0020] Compared with the prior art, the beneficial effects of the utility model are:

[0021] Compared with the prior art, the angle adjustment component in the present device can automatically fine-tune the angle of the chute according to different types of pellets, thereby making the height between the end of the chute and the discharge channel variable and not unique. In this way, the breakage rate of different types of pellets can be minimized during the transfer to the discharge channel, ensuring that the quality of the pellets stored in the subsequent ton bags is qualified, so as to facilitate subsequent processing and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 Schematic diagram of the coordination between the main gear and the auxiliary gear;

[0024] Reference numerals:

[0025] 1. Drying furnace; 11. First rotating shaft; 12. Chute; 121. Connector; 13. Sub-gear; 14. Second rotating shaft; 15. Main gear; 16. Mounting shell; 2. Discharging channel; 31. First electric cylinder; 32. Second electric cylinder. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. The utility model is further described in combination with the drawings and embodiments:

[0027] like Figure 1 and Figure 2As shown, the redirection chute includes a drying furnace 1 and a chute 12. The drying furnace 1 is obliquely provided with a discharge channel 2 that matches the chute 12. Two symmetrically distributed first rotating shafts 11 are rotatably connected in the drying furnace 1. One end of the first rotating shaft 11 is connected to the chute 12. One end of one of the first rotating shafts 11 passes through the drying furnace 1 and is provided with a sub-gear 13. A second rotating shaft 14 is rotatably connected to the outer wall of the drying furnace 1 and a main gear 15 meshing with the sub-gear 13 is provided on the second rotating shaft 14. One end of the second rotating shaft 14 is connected to a servo motor fixed on the outer wall of the drying furnace 1. The servo motor is not shown in the figure. Specifically, the first rotating shaft 11 and the second rotating shaft 14 are both made of Q235 steel to have strong supporting strength.

[0028] Further refinement of the embodiment of the present utility model is as follows: Figure 2 As shown, the outer wall of the drying furnace 1 is covered with a mounting shell 16 located outside the main gear 15 and the auxiliary gear 13, and a maintenance door is rotatably connected to the mounting shell 16; the maintenance door can facilitate the maintenance of the internal parts, and the wrapping design makes the appearance more beautiful and safe;

[0029] In a further optimization of the above embodiment, a control box is provided on one side of the maintenance door, a controller is provided in the control box, and an operation screen is provided on the control box. The maintenance door, the control box and the operation screen are all shown in the figure.

[0030] It should be noted that the servo motor and the operation screen are electrically connected to the controller.

[0031] The workflow of this utility model:

[0032] First, the same type of pellets after drying are conveyed to the chute 12 along the lowest chain conveyor belt. The inclination angle of the chute 12 has been adjusted in the initial state. The specific process is as follows: select the corresponding button on the operation screen according to the type of pellets to be dried in advance and press it. Then the operation screen feeds back a signal to the controller, and then the controller controls the servo motor to cooperate with the gear transmission to accurately adjust the inclination of the chute 12 to the state corresponding to the type of pellets. At this time, the distance between the chute 12 and the discharge channel 2 is limited, so that the pellets can be avoided from being damaged during the transfer from the chute 12 to the discharge channel 2 to the greatest extent. At the same time, the automatic angle adjustment of the chute 12 can be realized. Before the subsequent replacement of different types of pellets for the drying process, the button corresponding to the new type of pellets can be re-selected through the operation screen to realize the secondary deflection adjustment of the angle of the chute 12;

[0033] Compared with the prior art, the angle adjustment component in the present device can automatically fine-tune the angle of the chute 12 according to different types of pellets, thereby making the height between the end of the chute 12 and the discharge channel 2 variable and not unique. In this way, the breakage rate of different types of pellets can be minimized during the transfer to the discharge channel 2, ensuring that the quality of the pellets stored in the subsequent ton bags is qualified, so as to facilitate subsequent processing and use.

[0034] In some embodiments, symmetrically distributed connecting pieces 121 are respectively provided on the side walls at both ends of the chute 12, and the connecting pieces 121 are connected to a double support assembly to extend the service life of the first rotating shaft 11 without hindering the angle adjustment of the chute 12, and the double support assembly is connected to the inner wall of the drying furnace 1.

[0035] The first embodiment of the double support assembly:

[0036] In the specific implementation of the first embodiment of the utility model, the double support assembly includes a fall chain, the connecting piece 121 is a lifting ear, one end of the fall chain is connected to the lifting ear, and the other end of the fall chain is connected to the inner wall of the drying furnace 1; this embodiment is not shown in the figure; this embodiment needs to adjust the inclination angle of the chute 12 immediately before changing to dry different types of pellets, and before adjusting the angle, the fall chain is manually operated to relax the chain to leave a certain activity space so as not to affect the subsequent deflection of the chute 12. When the angle of the chute 12 is adjusted, the fall chain is immediately tightened again by manual means to achieve auxiliary load-bearing during the pellet conveying process to extend the service life of the first rotating shaft 11. The fall chain belongs to the prior art, and its operating principle is not described.

[0037] Double support assembly embodiment:

[0038] The specific implementation of the second embodiment of the utility model is as follows: Figure 1 As shown, the double support assembly includes a first electric cylinder 31 and a second electric cylinder 32 which are electrically connected to the controller independently, and the connecting piece 121 is a welding block. The first electric cylinder 31 and the second electric cylinder 32 are rotatably connected to the inner wall of the drying furnace 1, and the retracting rods of the first electric cylinder 31 and the second electric cylinder 32 are rotatably connected to the welding blocks at both ends of the chute 12. Compared with the first embodiment, the second embodiment can automatically complete the support load-bearing before and after the angle adjustment of the chute 12 without affecting the deflection of the chute 12, that is, the telescopic state of the two electric cylinders in the initial state is as shown in the attached manual. Figure 1 As shown in , when the inclination angle of the chute needs to be adjusted, the servo motor cooperates with the gear transmission to drive the first rotating shaft to move, and the two electric cylinders also work synchronously. However, the retraction rod of one of the electric cylinders contracts, and the retraction rod of the other electric cylinder extends, and the telescopic movement speed of the two electric cylinders is always consistent. In this way, the synchronous movement of the two electric cylinders and the first rotating shaft will not affect the deflection of the chute. This solution does not require manual intervention, thereby effectively reducing labor intensity.

[0039] In other embodiments, a layer of polytetrafluoroethylene plate is provided on the surface of the chute 12; in this embodiment, the pellets falling from the lowest chain conveyor belt onto the chute 12 will first contact the polytetrafluoroethylene plate. The polytetrafluoroethylene plate has good wear resistance, high temperature resistance and corrosion resistance, thereby effectively extending the service life of the chute 12 and reducing the replacement frequency.

[0040] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions in the specification are only to illustrate the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the protection required by the utility model. The scope of protection required by the utility model is defined by the attached claims and their equivalents.

Claims

1. A redirecting chute, comprising a chute (12) and a discharge channel (2), characterized in that: The chute (12) is rotatably arranged inside the drying furnace (1) and is connected to an angle adjustment component, which comprises a first rotating shaft (11), a sub-gear (13), a second rotating shaft (14), a main gear (15) and a servo motor. Two symmetrically distributed first rotating shafts (11) are rotatably connected inside the drying furnace (1), one end of the first rotating shaft (11) is connected to the chute (12), one end of one of the first rotating shafts (11) passes through the drying furnace (1) and is provided with a sub-gear (13), a second rotating shaft (14) is rotatably connected to the outer wall of the drying furnace (1) and is provided with a main gear (15) meshing with the sub-gear (13), and one end of the second rotating shaft (14) is connected to the servo motor fixed to the outer wall of the drying furnace (1).

2. The redirection chute according to claim 1, characterized in that: The side walls at both ends of the chute (12) are respectively provided with symmetrically distributed connecting pieces (121), the connecting pieces (121) are connected to a double supporting assembly to extend the service life of the first rotating shaft (11) without hindering the angle adjustment of the chute (12), and the double supporting assembly is connected to the inner wall of the drying furnace (1).

3. The redirection chute according to claim 2, characterized in that: The double support assembly comprises a fall chain, the connecting piece (121) is a lifting lug, one end of the fall chain is connected to the lifting lug, and the other end of the fall chain is connected to the inner wall of the drying furnace (1).

4. The redirection chute according to claim 2, characterized in that: The double support assembly comprises a first electric cylinder (31) and a second electric cylinder (32); the connecting member (121) is a welding block; the first electric cylinder (31) and the second electric cylinder (32) are rotatably connected to the inner wall of the drying furnace (1); and the retracting rods of the first electric cylinder (31) and the second electric cylinder (32) are rotatably connected to the welding blocks at both ends of the chute (12).

5. The redirection chute according to claim 1, characterized in that: The outer wall of the drying furnace (1) is covered with a mounting shell (16) located outside the main gear (15) and the auxiliary gear (13), and a maintenance door is rotatably connected to the mounting shell (16).

6. The redirection chute according to claim 1, characterized in that: A layer of polytetrafluoroethylene plate is provided on the surface of the chute (12).

7. The redirection chute according to claim 5, characterized in that: The maintenance door is provided with a control box, an operation screen is provided on the control box and a controller is provided inside the control box.

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