A conveying device for an antifreeze mixing apparatus

Abstract

The present application relates to the technical fields of antifreeze conveying and mixing, and particularly relates to a conveying device of an antifreeze mixing equipment; the conveying device comprises: two roller shafts connected to the left and right sides of the top of a chassis, a belt and the roller shafts are transmissionally connected to realize material conveying; a support fixed with a rudder motor is arranged on the left side of the chassis, a second chain wheel is fixedly connected to the output shaft of the rudder motor, a first chain wheel is fixedly connected to a roller shaft, and the two chain wheels drive the belt to circulate through a chain belt; a first storage hopper is hung on the chassis through a hanging frame, and a discharge valve is arranged below the first storage hopper; a second storage hopper is fixed to one side of the first storage hopper, and a discharge port of the second storage hopper is aligned with the belt; the discharge valve comprises a valve body, a rotatable valve shaft, and a fan wheel on the valve shaft, the valve shaft is connected with a second pulley, a first pulley on the outer wall of the second chain wheel is linked with the second pulley through a transmission belt, and a vibrating screen is fixed below the discharge valve on the right side of the chassis to screen the material. The present application solves the problem that the discharging speed of the iron ore powder hopper is not synchronized with the running speed of the belt conveyor.

Description

Technical Field

[0001] This invention relates to the field of antifreeze delivery and mixing technology, and specifically to a delivery device for an antifreeze mixing equipment. Background Technology

[0002] In extreme low-temperature environments during winter (such as -35 degrees Celsius), iron ore powder is prone to "frozen sides" (adhering to the side walls of the truck bed) and "frozen bottom" (severely adhering to the bottom of the truck bed) during transportation due to the low temperature. This necessitates thawing in a defrosting facility, which not only consumes high-energy-consuming facilities but also prolongs the transportation cycle and increases manual unloading and operating costs. To solve this problem, the industry has adopted a solution of installing antifreeze storage hoppers above the belt conveyor. After the iron ore powder falls onto the belt conveyor, antifreeze from another hopper is simultaneously released onto the surface of the iron ore powder on the belt, achieving an antifreeze effect through mixing. Existing technologies related to powder transportation equipment are disclosed in the Chinese patent database. For example, CN106743286A discloses a coal and rock transportation device for mining, and CN107187833B discloses a ground-based powder recovery device.

[0003] However, the problem with the above-mentioned existing technologies (CN106743286A, CN107187833B) is that the discharge speed of the hopper for iron ore powder is not synchronized with the running speed of the belt conveyor: when the belt runs too fast and the iron ore powder discharge is too slow, it is easy to cause the iron ore powder to be too dispersed; while when the belt runs too slow and the antifreeze discharge is too fast, it will cause local over-abundance of iron ore powder. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to provide a conveying device for an antifreeze mixing equipment, which solves the problem that the discharge speed of the hopper (discharge valve) for iron ore powder is not synchronized with the running speed of the belt conveyor.

[0005] This invention discloses a conveying device for an antifreeze mixing equipment, comprising a base frame, two roller shafts connected to the left and right sides of the top of the base frame, and a belt connected to the two roller shafts at both ends to achieve material conveying; a support for a fixed servo motor is fixed on the top left side of the base frame, the servo motor output shaft is concentrically fixed with a second sprocket, a first sprocket is fixed on one of the roller shafts, and the first sprocket and the second sprocket are connected by a chain belt to drive the roller shaft to drive the belt to circulate; a vibrating screen is fixed on the top right side of the base frame, the vibrating screen is located below the discharge valve to screen the material; a first storage hopper is mounted on the base frame by a suspension frame, and a discharge valve for controlling the discharge action is installed below the first storage hopper; a second storage hopper is fixed to one side of the first storage hopper, and the discharge port of the second storage hopper is opposite to the upper surface of the belt; a first rotating wheel is provided at the center of the outer wall of the second sprocket, and the first rotating wheel and the second rotating wheel on the discharge valve are linked by a transmission belt.

[0006] Specifically, the unloading valve includes a valve body that serves as the main housing, a valve shaft that is rotatably connected to the valve body and can rotate inside the valve body; a fan impeller that is fixed on the valve shaft and located inside the valve body in a transverse arrangement, and rotates synchronously with the valve shaft to push and control the material unloading process; and a second impeller that is concentrically connected to the free end of the valve shaft.

[0007] Specifically, two crescent-shaped baffles are installed on both sides of the upper opening of the valve body to guide iron ore powder onto the horizontally arranged impeller inside the valve body, and at the same time, they work with the impeller to adjust the effective area of ​​material discharge.

[0008] Specifically, the vibrating screen includes a screen box with a support arm at the bottom. The other end of the support arm is fixed to the base frame to support the screen box. Inside the screen box, there is a screen for screening materials. The discharge side of the screen box is connected to a guide slope for guiding the screened material out. The vibrating motor is fixed on the vibrating machine base, which is fixed to the base frame. The vibrating motor is connected to the screen box to provide vibration driving force to the screen box. One end of the buffer spring is connected to the screen box, and the other end is connected to the buffer arm. The buffer arm is fixed to the base frame, and the buffer spring is used to buffer the vibration of the screen box.

[0009] The optimized design includes a collection box on the side opposite the tail of the screen box on the base frame, used to centrally collect the oversize material discharged from the guide slope.

[0010] The optimized discharge valve also integrates a uniform material spreading mechanism at its discharge end. This mechanism includes a corrugated pipe, one end of which is connected to the discharge port of the discharge valve body, and the other end is connected to the uniform material hopper to transport materials. Two slide rails are symmetrically installed on the top of the inner side of the screen box, and the uniform material hopper is slidably connected to the two slide rails. The first screw and the second screw are threadedly connected to the left and right ends of the uniform material hopper, respectively, and are rotatably connected to the screen box. The motor is fixed on the screen box, and the motor output shaft is driven to the first screw through the first traction belt and to the second screw through the second traction belt, so as to drive the two screws to rotate and drive the uniform material hopper to slide along the slide rails.

[0011] The optimized design includes a scraper at the lower end of the support, above the belt. This scraper contacts the mixture of antifreeze and iron ore powder on the belt to spread the mixture and promote further mixing of the antifreeze and iron ore powder.

[0012] The optimized design includes a material spreading mechanism at the discharge port of the second storage hopper. This mechanism comprises positioning arms fixed to both sides of the base frame, with pins on both sides of the roller rotatably connected to the positioning arms. The roller has a hollow cavity structure in the middle, with mesh-like through holes and through holes spaced apart on the roller's circumferential sidewalls. The outer sidewall of the roller is in contact with and adapted to the arc-shaped discharge port of the second storage hopper. The drive unit on the positioning arm is connected to one of the pins of the roller for driving the roller to rotate intermittently, so that the discharge port of the second storage hopper is aligned with the through holes and mesh-like through holes of the roller in sequence, thereby forming multiple adjacent small flat material layers with a "left-side slightly higher slope" on the surface of the iron ore powder.

[0013] The beneficial effects of this invention are as follows: First, this application primarily addresses the issue of asynchronous discharge speed between the unloading valve and the belt conveyor. Second, the unloading valve, through the cooperation of a horizontally arranged impeller and a crescent-shaped baffle, can precisely control the unloading speed and quantity. Third, the simultaneous discharge from the first and second storage hoppers ensures uniform mixing of iron ore powder and antifreeze, effectively improving the antifreeze effect and preventing "frozen sides" and "frozen bottom" phenomena. Fourth, the vibrating screen has a stable structure, high-efficiency screening operation, and ensures effective material grading. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the conveying device of the antifreeze mixing equipment of the present invention.

[0015] Figure 2 This is a partial installation diagram of the conveying device of the antifreeze mixing equipment of the present invention.

[0016] Figure 3 This is a schematic diagram of the unloading valve installation structure of the present invention.

[0017] Figure 4 This is a schematic cross-sectional view of the unloading valve of the present invention.

[0018] Figure 5 This is a three-dimensional structural diagram of the vibrating screen of the present invention.

[0019] Figure 6 This is a schematic diagram of the material collection box installation structure of the present invention.

[0020] Figure 7 This is a schematic diagram of the installation structure of the uniform material spreading mechanism of the present invention.

[0021] Figure 8 This is a three-dimensional structural diagram of the uniform material spreading mechanism of the present invention.

[0022] Figure 9 This is a schematic diagram of the optimized three-dimensional structure of the antifreeze mixing equipment of the present invention.

[0023] Figure 10This is a schematic diagram of the small flat material layer morphology of multiple "left-side high slope morphology" of the present invention.

[0024] Figure 11 This is a schematic diagram of a partial installation structure of the material spreading mechanism of the present invention.

[0025] Figure 12 This is a three-dimensional structural diagram of the material spreading mechanism of the present invention.

[0026] Figure 13 This is a schematic diagram of the three-dimensional structure of the roller in the material spreading mechanism of the present invention.

[0027] Figure 14 This is a schematic diagram of the optimized drive unit mounting structure of the present invention.

[0028] Figure 15 This is a three-dimensional structural diagram of the spray structure of the present invention.

[0029] In the diagram: 1. Base frame; 2. Roller shaft; 3. Belt; 4. Support; 5. Steering motor; 6. Second sprocket; 7. First sprocket; 8. Chain belt; 9. Vibrating screen; 10. First storage hopper; 11. Suspension frame; 12. Discharge valve; 13. Second storage hopper; 14. First impeller; 15. Second impeller; 16. Drive belt; 17. Valve body; 18. Valve shaft; 19. Fan impeller; 20. Crescent-shaped baffle; 21. Screen box; 22. Support arm; 23. Screen mesh; 24. Guide slope; 25. Vibrating motor; 26. Vibrating machine base; 27. Buffer spring. 28. Buffer arm; 29. ​​Collection box; 30. Corrugated pipe; 31. Blending hopper; 32. Slide rail; 33. First screw; 34. Second screw; 35. Motor; 36. First traction belt; 37. Second traction belt; 38. Scraper; 39. Positioning arm; 40. Roller; 41. Pin; 42. Mesh through hole; 43. Through hole; 44. Four-jaw ratchet; 45. Notched disc; 46. Lever; 47. Linkage belt; 48. Swing plate; 49. Bearing column; 50. Transition plate; 51. Nozzle; 52. Guide groove; 53. Spray pipe. Detailed Implementation

[0030] To clearly understand the technical solution of this application, the conveying device of an antifreeze mixing equipment provided by this application will be described in detail below with reference to specific embodiments and accompanying drawings.

[0031] The terminology used in the following embodiments is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. As used in the specification and claims of this application, the singular expressions “a,” “an,” “the,” “the,” and “this” are intended to also include expressions such as “one or more,” unless the context clearly indicates otherwise. It should also be understood that in the following embodiments of this application, “at least one” and “one or more” refer to one, two, or more than two.

[0032] References to "one embodiment" or "some embodiments" as used in this specification mean that one or more embodiments of this application include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "one embodiment," "some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized.

[0033] Example 1: This example provides a conveying device for an antifreeze mixing equipment, referring to... Figure 1-2 , Figure 1 The diagram shown is a three-dimensional structural schematic of this application. Figure 2The diagram shows a partial installation structure of this application. As can be seen, the conveying device includes a base frame 1, which serves as the fundamental support structure for stabilizing the entire device. Two roller shafts 2 are rotatably connected to the left and right sides of the top of the base frame 1. The two ends of a belt 3 are connected to the two roller shafts 2 for transmission. A support 4 is fixed to the left side of the top of the base frame 1 to support and fix a servo motor 5. The servo motor 5, fixed to the support 4, is the power output component of the device. The output shaft of the servo motor 5 is concentrically fixed to a second sprocket 6. A first sprocket 7 is fixed to one of the roller shafts 2. The first sprocket 7 and the second sprocket 6 are connected via a chain belt 8, allowing the servo motor 5 to drive the roller shaft 2 to rotate, thereby driving the belt 3 to circulate and convey the material. A vibrating screen 9 is fixedly connected to the right side of the top of the base frame 1 and is located below the discharge valve 12. The vibrating screen 9 is used to screen the unloaded material, serving to filter the particle size. The first storage hopper 10 is mounted on the base frame 1 via a suspension bracket 11 and is used to store materials to be conveyed. A discharge valve 12 is installed below the first storage hopper 10 to control the discharge of materials from the first storage hopper 10. The second storage hopper 13 is fixed to one side of the first storage hopper 10 and is used to store auxiliary materials such as antifreeze. The discharge port of the second storage hopper 13 is opposite to the upper surface of the belt 3. The first rotating wheel 14 at the center of the outer wall of the second sprocket 6 and the second rotating wheel 15 on the discharge valve 12 are linked by a transmission belt 16 to achieve coordinated control of the operation of the discharge valve 12 and the operation of the belt 3, thereby ensuring the synchronicity of material conveying and discharge.

[0034] For details, please refer to Figure 2-4 , Figure 3 The diagram shown is a schematic of the installation structure of the discharge valve 12. Figure 4 The diagram shows a cross-sectional view of the discharge valve 12. As can be seen from the diagram, the discharge valve 12 includes a valve body 17, which serves as the main outer shell of the valve 12 and provides a mounting base for other components. A valve shaft 18 is rotatably connected to the valve body 17 and can rotate inside the valve body 17. An impeller 19 is fixed to the valve shaft 18 and is located laterally inside the valve body 17, rotating synchronously with the valve shaft 18 to drive and control the material discharge process. Two crescent-shaped baffles 20 are installed on both sides of the upper opening of the valve body 17. Their main function is to guide iron ore powder onto the laterally arranged impeller 19 inside the valve body 17, and simultaneously work with the impeller 19 to adjust the effective discharge area, thereby precisely controlling the discharge speed.

[0035] For details, please refer to Figure 1 and combined Figure 5 ,in Figure 5The diagram shows a three-dimensional structural schematic of the vibrating screen 9. As can be seen, the vibrating screen 9 includes a screen box 21, with a support arm 22 at the bottom of the screen box 21. The other end of the support arm 22 is fixedly connected to the base frame 1. The support arm 22 supports the screen box 21, ensuring its structural stability during vibration. A screen mesh 23 is located inside the screen box 21 for screening materials entering the screen box 21. A guide slope 24 is connected to the discharge side of the screen box 21 to guide the material (iron ore powder) screened by the screen mesh 23 out of the screen box. A vibrating motor 25 is installed and fixed on a vibrating base 26. The vibrating base 26 is fixedly connected to the base frame 1. Simultaneously, the vibrating motor 25 is connected to the screen box 21, providing vibration driving force to the screen box 21. One end of a buffer spring 27 is connected to the screen box 21, and the other end is connected to a buffer arm 28. The buffer arm 28 is fixedly connected to the base frame 1, and the buffer spring 27 buffers the vibration of the screen box 21.

[0036] The workflow of this invention is roughly as follows: Step 1: Start the servo motor 5. The servo motor 5 drives the first sprocket 7 to rotate through the second sprocket 6 and the chain belt 8, which in turn drives the roller shaft 2 to rotate, so that the belt 3 runs in a direction (upward) to provide power for material conveying.

[0037] Step 2: While the servo motor 5 is running, the first rotating wheel 14 on the output shaft of the servo motor 5 drives the second rotating wheel 15 of the unloading valve 12 to rotate through the transmission belt 16, causing the valve shaft 18 of the unloading valve 12 to rotate, and the fan impeller 19 fixed on the valve shaft 18 to rotate synchronously; the iron ore powder in the first storage hopper 10 is guided by the crescent-shaped baffle 20 and discharged by the rotation of the fan impeller 19, falling into the screen box 21 of the vibrating screen 9.

[0038] Step 3: The vibrating motor 25 is started, and the vibration force is transmitted to the screen box 21 through the vibrating machine base 26 fixed to the base frame 1. The screen box 21 vibrates under the buffering action of the buffer spring 27, so that the iron ore powder in the screen box 21 moves on the screen 23 and is screened.

[0039] Step 4: The undersize material (iron ore powder that passes through screen 23) falls onto the belt 3 moving in the direction a, and moves upward with the belt 3, where it meets and mixes with the antifreeze discharged from the discharge port of the second storage hopper 13; the oversize material (iron ore powder that does not pass through screen 23) moves downward along screen 23 and is discharged through the guide slope 24, completing the entire screening and mixing process.

[0040] The overall beneficial effects of this invention are as follows: First, this application primarily addresses the issue of asynchronous discharge speed between the discharge valve 12 and the conveyor belt 3. Second, the discharge valve 12, through the cooperation of the horizontally arranged impeller 19 and the crescent-shaped baffle 20, can precisely control the discharge speed and discharge volume. Third, the simultaneous discharge from the first storage hopper 10 and the second storage hopper 13 ensures uniform mixing of iron ore powder and antifreeze, effectively improving the antifreeze effect and preventing "frozen sides" and "frozen bottom" phenomena. Fourth, the vibrating screen 9 has a stable structure, efficient screening operation, and ensures effective material grading.

[0041] In Example 2, during the screening process, the material (iron ore powder) will be discharged from the screen along the guide slope 24 towards the tail of the screen box 21 under the action of vibration and its own gravity. If there is a lack of effective means to collect this discharged material, it will scatter in the base frame 1 and surrounding area, resulting in material waste, increased workload for on-site cleaning and subsequent processing, and potentially interfering with the stable operation of the equipment due to material accumulation. Therefore, the solution proposed in this example is: (Refer to...) Figure 6 The diagram shows the installation structure of the collection box 29. As can be seen from the diagram, the collection box 29 is set on the side of the base frame 1 opposite to the tail of the screen box 21, so as to realize the centralized collection of the material discharged from the guide slope 24 and solve the above-mentioned technical problems.

[0042] In Example 3, during the unloading process of the discharge valve 12 onto the screen 23, the iron ore powder, due to its own gravity, tends to accumulate in specific areas of the screen 23. This not only easily leads to localized overload and mesh blockage of the screen 23, but also causes uneven distribution of the iron ore powder after screening on the conveyor belt 3. This uneven distribution will, on the one hand, cause imbalance in the force on the belt 3, increasing equipment wear and maintenance costs; on the other hand, it will affect the accuracy of subsequent iron ore powder mixing and other processes, adversely impacting the production process.

[0043] To address the technical problem of uneven iron ore powder distribution during the discharge process of the unloading valve 12, and to ensure that the iron ore powder processed by the screen 23 can be evenly spread on the conveyor belt 3, this embodiment specifically designs a uniform spreading mechanism adapted to the unloading valve 12. (Reference) Figure 7 The diagram shows the installation structure of the uniform spreading mechanism. As can be seen from the diagram, the uniform spreading mechanism is integrated into the discharge end of the discharge valve 12. By actively guiding and dispersing the flow trajectory of the iron ore powder during the discharge process of the discharge valve 12, the uniform spreading of the iron ore powder on the surface of the screen 23 is achieved. The specific structure of the uniform spreading mechanism is as follows.

[0044] refer to Figure 8 and combined Figure 7 ,in Figure 8The diagram shows a three-dimensional structural schematic of the uniform material spreading mechanism. As can be seen, the mechanism includes a corrugated pipe 30. The discharge port of the discharge valve 12 body 17 is connected to the corrugated pipe 30, and the other end of the corrugated pipe 30 is connected to a material spreading hopper 31, used to transport the material from the discharge valve 12 to the material spreading hopper 31. Two slide rails 32 are symmetrically installed on the top of the inner side of the screen box 21. The material spreading hopper 31 is slidably connected to the two slide rails 32, allowing it to slide along the slide rails 32. The left and right ends of the material spreading hopper 31 are... The first screw 33 and the second screw 34 are connected by threads, and both the first screw 33 and the second screw 34 are rotatably connected to the screen box 21. The motor 35 is fixed on the screen box 21, and the output shaft of the motor 35 is respectively connected to the first traction belt 36 and the second traction belt 37. The first traction belt 36 is connected to the first screw 33, and the second traction belt 37 is connected to the second screw 34, so that the motor 35 can drive the screw to rotate through the traction belt, thereby driving the material hopper 31 to slide along the slide rail 32.

[0045] Based on the above connections, the working principle of the uniform material spreading mechanism is as follows: Step 1: The iron ore powder discharged from the discharge valve 12 is directly transported to the uniform hopper 31 through the corrugated pipe 30 to complete the material receiving and guiding.

[0046] Step 2: Start motor 35. The output shaft of motor 35 drives the corresponding first screw 33 and second screw 34 to rotate through the first traction belt 36 and the second traction belt 37, respectively.

[0047] Step 3: When the screw rotates, the structure connected to the two ends of the uniform hopper 31 by threads is converted into linear motion, which drives the uniform hopper 31 to slide smoothly along the two slide rails 32 on the inner side of the screen box 21.

[0048] Step 4: During the sliding process, the uniform hopper 31 continuously and evenly spreads the iron ore powder it receives onto the screen 23 below, preventing the material from accumulating.

[0049] In Example 4, in the mixing process of the above example, after the antifreeze and iron ore powder are initially mixed on the belt 3, there is still a problem of insufficient mixing uniformity. If the mixing is not sufficient, the antifreeze effect will be reduced and the material properties of subsequent processes will be affected.

[0050] To address the technical problem of insufficient mixing between antifreeze and iron ore powder, and to ensure thorough mixing, the following references are made. Figure 9 The figure shows a three-dimensional structural diagram of the optimized structure of this application. As can be seen from the figure, in this embodiment, a scraper 38 is provided at the lower end of the support 4 and above the belt 3. As the belt 3 continues to run, the scraper 38 comes into contact with the antifreeze and iron ore powder mixture on the belt 3, and further mixes the mixture while spreading it out, thereby improving the mixing uniformity.

[0051] When antifreeze and iron ore powder are mixed, they generally go through three steps: Step 1 (Preliminary Mixing): After screening, the iron ore powder falls onto the conveyor belt 3, while antifreeze is discharged from the discharge port of the second storage hopper 13, causing the antifreeze particles to scatter and adhere to the surface of the iron ore powder, forming a preliminary physical mixture.

[0052] Step 2 (secondary mixing): As the belt 3 continues to operate, the scraper 38 at the lower end of the support 4 and above the belt 3 comes into contact with the mixture of iron ore powder and antifreeze. The scraper 38 uses mechanical force to flatten the mixture, breaking the layered structure of the material and allowing the antifreeze and iron ore powder to fully interweave, thus achieving secondary mixing.

[0053] Step 3 (three-stage mixing): The iron ore powder and antifreeze mixture is transported by belt 3 to the discharge end and falls from the end. Under the action of gravity, the iron ore powder and antifreeze mixture falls, and the particles disperse and collide, so that the two materials are further evenly distributed in space, completing the third mixing.

[0054] Example 5: During the secondary mixing process of the antifreeze and iron ore powder mixture, if the antifreeze does not exhibit multiple adjacent "small flat layers" with a "left-side higher slope" on the surface of the iron ore powder ( Figure 10 (The diagram shows the shape of multiple small flat material layers). The scraper 38 cannot achieve sufficient flattening and deep mixing through the efficient action of "pushing material from high to low", which will limit the flattening and mixing effect of the scraper 38.

[0055] Regarding the above issues, please refer to [link / reference]. Figure 9 This application designs a material spreading mechanism adapted to the discharge port of the second storage hopper 13, so that the antifreeze forms multiple adjacent "small flat material layers" on the surface of the iron ore powder mixture, each "small flat material layer" presenting a slope shape with the left side slightly higher; when the scraper 38 contacts the high point of the material layer, it can push the material at the high point to the low point. During the spreading process, the relative movement of the materials is used to make the antifreeze and iron ore powder fully intertwine, thereby enhancing the spreading effect and improving the mixing accuracy; the specific structure of the material spreading mechanism is as follows.

[0056] refer to Figure 11-13 and combined Figure 9 ,in, Figure 11 The diagram shown is a partial installation structure schematic of the material spreading mechanism. Figure 12 The diagram shown is a three-dimensional structural schematic of the material laying mechanism. Figure 13The diagram shows a three-dimensional structural schematic of the roller 40. As can be seen, the material spreading mechanism includes positioning arms 39, which are fixed to both sides of the base frame 1. Pins 41 on both sides of the roller 40 are rotatably connected to the corresponding positioning arms 39, allowing the roller 40 to rotate relative to the positioning arms 39. The roller 40 has a hollow cavity structure in the middle, with mesh-like through holes 42 and through holes 43 (such as...) sequentially spaced on its peripheral sidewalls. Figure 13 As shown, there are four mesh through holes 42 and four through holes 43. The outer wall of the roller 40 and the arc-shaped discharge port of the second storage hopper 13 are in contact and adapted to achieve the separate discharge of antifreeze in different forms, providing a structural basis for the formation of multiple adjacent "small flat material layers" with a "left-side higher slope". A drive unit is installed on the positioning arm 39. The drive unit is connected to one of the pins 41 of the roller 40 for transmission. It is used to drive the roller 40 to achieve intermittent rotation. After each rotation, it is aligned with the next through hole 43, and there is a short interval between rotations before it rotates again. By controlling the rotation rhythm of the roller 40, in conjunction with the structure of the mesh through holes 42 and the through holes 43, the antifreeze forms the high and low ends of the slope on the iron ore powder. (When the through hole 43 is aligned with the arc-shaped discharge port, the antifreeze passes through the through hole 43 and the roller 40 and forms the high end of the slope on the iron ore powder. As the roller 40 continues to rotate, the through hole 43, which is initially aligned with the arc-shaped discharge port, gradually becomes smaller until the arc-shaped discharge port is aligned with the mesh through hole 42. At this time, both processes form the low end of the slope.) This ensures that multiple adjacent "small flat layers" with a "left-side higher slope" are presented on the surface of the iron ore powder. The specific structure of the drive unit is as follows.

[0057] Specifically, the drive unit includes a four-jaw ratchet 44, which is concentrically fixed on the pin 41 of the roller 40. All three rotate coaxially, and through cooperation with the notched disc 45 and the lever 46, they achieve intermittent rotation, thereby driving the roller 40 to precisely control the discharge pattern of the antifreeze. The notched disc 45 is rotatably connected to the positioning arm 39 and can rotate relative to the positioning arm 39. As the driving component of the Geneva mechanism, it receives the power transmitted by the linkage belt 47 and drives the lever 46. The lever 46 is located at the notch of the notched disc 45 and forms a fixed (or integral) connection with the notched disc 45. When the notched disc 45 rotates, it pushes the four-jaw ratchet 44 to rotate intermittently. The outer arc surface of the notched disc 45 contacts and adapts to the arc groove of the four-jaw ratchet 44, positioning the four-jaw ratchet 44 when the lever 46 slides out of the groove, ensuring the stopping accuracy of intermittent rotation; the protrusion at the end of the lever 46 slides and adapts to the groove of the four-jaw ratchet 44. The notched disc 45, lever 46, and four-jaw ratchet 44 together constitute the Geneva mechanism. Utilizing the intermittent transmission characteristics of this mechanism, the roller 40 achieves intermittent rotation at a specific angle to form multiple adjacent "small flat material layers". One end of the linkage belt 47 is connected to the output shaft of the servo motor 5, and the other end is connected to the central part of the notched disc 45, transmitting the power of the servo motor 5 to the notched disc 45 without the need for an additional power source, achieving efficient power transmission and utilization. When the protrusion at the end of the lever 46 slides out of the corresponding groove of the four-jaw ratchet 44, the discharge port of the second storage hopper 13 is directly opposite the through hole 43 of the drum 40. At this time, the antifreeze is discharged through the through hole 43 to form the high end of the slope. When the lever 46 slides in and out of the groove, it forces the four-jaw ratchet 44 to rotate 90 degrees. During this process, the discharge port of the second storage hopper 13 passes through the through hole 43 and the mesh through hole 42 in sequence until it is directly opposite the next through hole 43 of the drum 40. Through the intermittent rotation of the drum 40, the antifreeze is discharged through the through hole 43 and the mesh through hole 42 in sequence to form the low end of the slope. Finally, multiple adjacent "small flat material layers" with a "left-side higher slope shape" are presented on the surface of the iron ore powder, laying the foundation for the efficient mixing operation of the subsequent scraper 38.

[0058] Based on the above connections, the working principle of the material spreading mechanism is as follows: Step 1: Servo motor 5 is activated, driving notched disc 45 to rotate via linkage belt 47, and lever 46 on notched disc 45 moves synchronously with it.

[0059] Step 2: When the protrusion at the end of the lever 46 slides into the groove of the four-jaw ratchet 44, it pushes the four-jaw ratchet 44 to rotate 90 degrees, thereby driving the roller 40 to rotate synchronously; when the protrusion at the end of the lever 46 slides out of the groove, the outer arc surface of the notched disc 45 contacts the arc groove of the four-jaw ratchet 44, and the four-jaw ratchet 44 and the roller 40 stop, thereby realizing the intermittent rotation of the roller 40.

[0060] Step 3: During the intermittent rotation of the drum 40, the discharge port of the second storage hopper 13 aligns sequentially with the through hole 43 and the mesh through hole 42 of the drum 40. When the through hole 43 is directly opposite the discharge port, the antifreeze is discharged through the through hole 43, forming the high end of the slope on the iron ore powder. As the drum 40 rotates, the discharge port gradually aligns with the mesh through hole 42, and the antifreeze is discharged through the mesh through hole 42, forming the low end of the slope. This cycle continues, ultimately resulting in multiple adjacent small flat layers of material with a "left-side higher slope" on the surface of the iron ore powder, laying the foundation for the efficient mixing operation of the subsequent scraper 38.

[0061] The present invention, by setting up a material spreading mechanism, has the following beneficial effects: First, it enables the antifreeze to form multiple adjacent small flat material layers on the surface of iron ore powder with a "left-side slightly higher slope shape", creating conditions for the efficient operation of the scraper 38; Second, it works with the scraper 38 to achieve "pushing material from high to low", enhancing the spreading effect, promoting the full interweaving of antifreeze and iron ore powder, and improving the mixing accuracy; Third, it is compatible with the structure of the second storage hopper 13 and the roller 40, achieving precise material distribution through shaped material feeding, reusing the power of the servo motor 5, and eliminating the need for an additional power source.

[0062] In existing technologies, some liquid components (such as propylene glycol aqueous solution) need to be injected via spraying during the preparation of antifreeze; to address this issue, refer to Figure 14 ( Figure 14 The diagram shown is a schematic of the installation structure of the optimized drive unit. In this embodiment, the drive unit is further optimized by adding a spray structure on the basis of the original structure (the drive unit also includes a spray structure). The power of the drive unit during operation is used to link the spray structure to achieve reciprocating motion at far and near distances, so that the propylene glycol aqueous solution sprayed by the spray structure can fully cover the inner side and outer periphery of the antifreeze falling inside the drum 40, thereby achieving full mixing of liquid and antifreeze.

[0063] refer to Figure 14-15 , Figure 15The diagram shows a three-dimensional structural schematic of the spraying structure. As can be seen, the spraying structure includes a swing plate 48, which is rotatably connected to an eccentric position on the notched disc 45, allowing them to rotate relative to each other. The other end of the swing plate 48 is rotatably connected to a support column 49, also allowing them to rotate relative to each other. One end of the support column 49 is fixedly connected to the nozzle 51 via a transition plate 50, which connects and fixes the support column 49 to the nozzle 51. The other end of the support column 49 is slidably connected within a guide groove 52, which is fixed to a support 4, allowing the support column 49 to slide along the guide groove 52. A spray pipe 53 is connected to the nozzle 51, with its distal end connected to a liquid tank (not shown in the diagram). The nozzle 51 has a built-in water pump (e.g., an existing product using model DC40, not shown in the diagram), used to spray liquid material falling into the drum 40. As the notch plate 45 rotates, the swing plate 48 reciprocates, which in turn drives the bearing column 49 to slide along the guide groove 52, indirectly driving the nozzle 51 to reciprocate in both near and far directions.

[0064] Based on the above connections, the working principle of the injection structure is as follows: Step 1: The notched disk 45 rotates. Since the swing plate 48 is connected to the eccentric position of the notched disk 45, it drives the swing plate 48 to reciprocate.

[0065] Step 2: The swing plate 48 is rotatably connected to the bearing column 49. The reciprocating motion of the swing plate 48 drives the bearing column 49 to slide along the guide groove 52 fixed on the support 4, thereby causing one end of the bearing column 49 to make a far-to-near reciprocating motion through the nozzle 51 connected by the transition plate 50.

[0066] Step 3: The nozzle 51 has a built-in water pump that draws propylene glycol aqueous solution from the liquid tank through the spray pipe 53. During the reciprocating motion of the nozzle, it sprays the solution onto the inner side and outer periphery of the antifreeze falling into the roller 40, thereby achieving full mixing of the liquid and the antifreeze.

[0067] The present invention, by setting up a spray structure, has the following beneficial effects: The present invention adopts a spray-type injection method, combined with far and near reciprocating motion, so that the liquid material fully covers the inner side and outer periphery of the antifreeze falling inside the drum 40, significantly improving the mixing uniformity of the liquid material and antifreeze; the far and near reciprocating motion expands the spray coverage range, ensuring that the liquid components and antifreeze are fully intertwined, effectively improving the performance of the antifreeze; by reusing the power of the drive unit through the notch plate 45, no additional power source is required, saving costs.

Claims

1. A conveying device for an antifreeze mixing equipment, characterized in that: The system includes a base frame with two roller shafts connected to the left and right sides of the top. A belt is connected to the two roller shafts at both ends to facilitate material transport. A support for a servo motor is fixed to the top left side of the base frame. The servo motor's output shaft is concentrically fixed to a second sprocket. A first sprocket is fixed to one of the roller shafts, and the first and second sprockets are connected via a chain drive to drive the roller shaft and the belt in a cyclical motion. A vibrating screen is fixed to the top right side of the base frame, located below a discharge valve for material screening. A first storage hopper is mounted on the base frame via a suspension bracket, and a discharge valve controlling the discharge action is installed below the first storage hopper. A second storage hopper is fixed to one side of the first storage hopper, with its discharge port opposite the upper surface of the belt. A center point on the outer wall of the second sprocket is... There is a first rotating wheel, which is linked with a second rotating wheel on the unloading valve via a transmission belt; a spreading mechanism is provided at the discharge port of the second storage hopper, which includes positioning arms fixed on both sides of the base frame, and pins on both sides of the roller are rotatably connected to the positioning arms; the middle of the roller has a hollow structure, and the side walls of the roller are provided with mesh-like through holes and through holes at intervals, and the outer side wall of the roller is in contact with and adapted to the arc-shaped discharge port of the second storage hopper; the drive unit on the positioning arm is connected to one of the pins of the roller for driving the roller to rotate intermittently, so that the discharge port of the second storage hopper is aligned with the through holes and mesh-like through holes of the roller in sequence, so that the antifreeze forms multiple adjacent small flat layers with a slightly higher left slope on the surface of the iron ore powder.

2. The conveying device of the antifreeze mixing equipment according to claim 1, characterized in that: The discharge valve includes a valve body that serves as the main housing, a valve shaft that is rotatably connected to the valve body and can rotate inside the valve body; a fan impeller that is fixed on the valve shaft and located inside the valve body in a transverse arrangement, and rotates synchronously with the valve shaft to push and control the material discharge process; and a second impeller that is concentrically connected to the free end of the valve shaft.

3. The conveying device of the antifreeze mixing equipment according to claim 2, characterized in that: Two crescent-shaped baffles are installed on both sides of the upper opening of the valve body to guide iron ore powder onto the horizontally arranged impeller inside the valve body, and at the same time, they work with the impeller to adjust the effective area of ​​material discharge.

4. The conveying device of the antifreeze mixing equipment according to claim 1, characterized in that: The vibrating screen includes a screen box with a support arm at the bottom. The other end of the support arm is fixed to the base frame to support the screen box. Inside the screen box is a screen for screening materials. A guide slope is connected to the discharge side of the screen box to guide the screened material out. A vibrating motor is fixed on a vibrating base, which is fixed to the base frame. The vibrating motor is connected to the screen box to provide vibration driving force to the screen box. One end of a buffer spring is connected to the screen box, and the other end is connected to a buffer arm. The buffer arm is fixed to the base frame. The buffer spring is used to buffer the vibration of the screen box.

5. The conveying device of the antifreeze mixing equipment according to claim 1, characterized in that: A collection box is installed on the base frame, on the side opposite to the tail of the screen box, to collect the material discharged from the screen by the guide slope.

6. The conveying device of the antifreeze mixing equipment according to claim 1, characterized in that: The discharge end of the discharge valve also integrates a uniform material spreading mechanism. This mechanism includes a corrugated pipe, one end of which is connected to the discharge port of the discharge valve body, and the other end is connected to the uniform material hopper to transport materials. Two slide rails are symmetrically installed on the top of the inner side of the screen box, and the uniform material hopper is slidably connected to the two slide rails. The first screw and the second screw are respectively threaded to the left and right ends of the uniform material hopper, and both are rotatably connected to the screen box. The motor is fixed on the screen box, and the motor output shaft is driven to the first screw through the first traction belt and to the second screw through the second traction belt, so as to drive the two screws to rotate and drive the uniform material hopper to slide along the slide rails.

7. The conveying device of the antifreeze mixing equipment according to claim 1, characterized in that: A scraper is installed at the lower end of the support and above the belt. The scraper comes into contact with the antifreeze and iron ore powder mixture on the belt to spread the mixture and promote further mixing of the antifreeze and iron ore powder.

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